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Finding the Fourth Proportional to 77,391.26, 106,801.16 and 43,407.30

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Solution

The fourth proportional to 77,391.26, 106,801.16 and 43,407.30 is: 59,902.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,391.26 : 106,801.16 = 43,407.30 : x
  2. Step 2: Convert to fraction form
    77,391.26/106,801.16 = 43,407.30/x
  3. Step 3: Cross multiply
    77,391.26x = 106,801.16 × 43,407.30
  4. Step 4: Simplify right side
    77,391.26x = 4,635,949,775.43
  5. Step 5: Solve for x
    x = 4,635,949,775.43/77,391.26
  6. Step 6: Final answer
    x = 59,902.76

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