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Finding the Fourth Proportional to 71,423.20, 107,134.80 and 59,845.60

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Solution

The fourth proportional to 71,423.20, 107,134.80 and 59,845.60 is: 89,768.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,423.20 : 107,134.80 = 59,845.60 : x
  2. Step 2: Convert to fraction form
    71,423.20/107,134.80 = 59,845.60/x
  3. Step 3: Cross multiply
    71,423.20x = 107,134.80 × 59,845.60
  4. Step 4: Simplify right side
    71,423.20x = 6,411,546,386.88
  5. Step 5: Solve for x
    x = 6,411,546,386.88/71,423.20
  6. Step 6: Final answer
    x = 89,768.40

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