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Finding the Fourth Proportional to 57,796.40, 86,677.32 and 30,079.28

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Solution

The fourth proportional to 57,796.40, 86,677.32 and 30,079.28 is: 45,109.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,796.40 : 86,677.32 = 30,079.28 : x
  2. Step 2: Convert to fraction form
    57,796.40/86,677.32 = 30,079.28/x
  3. Step 3: Cross multiply
    57,796.40x = 86,677.32 × 30,079.28
  4. Step 4: Simplify right side
    57,796.40x = 2,607,191,377.93
  5. Step 5: Solve for x
    x = 2,607,191,377.93/57,796.40
  6. Step 6: Final answer
    x = 45,109.93

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