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Finding the Fourth Proportional to 9,978,930.86, 13,770,912.92 and 5,395,241.30

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Solution

The fourth proportional to 9,978,930.86, 13,770,912.92 and 5,395,241.30 is: 7,445,426.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,978,930.86 : 13,770,912.92 = 5,395,241.30 : x
  2. Step 2: Convert to fraction form
    9,978,930.86/13,770,912.92 = 5,395,241.30/x
  3. Step 3: Cross multiply
    9,978,930.86x = 13,770,912.92 × 5,395,241.30
  4. Step 4: Simplify right side
    9,978,930.86x = 74,297,398,124,687.59
  5. Step 5: Solve for x
    x = 74,297,398,124,687.59/9,978,930.86
  6. Step 6: Final answer
    x = 7,445,426.69

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