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Finding the Fourth Proportional to 72,444.74, 99,978.54 and 40,615.70

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Solution

The fourth proportional to 72,444.74, 99,978.54 and 40,615.70 is: 56,052.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,444.74 : 99,978.54 = 40,615.70 : x
  2. Step 2: Convert to fraction form
    72,444.74/99,978.54 = 40,615.70/x
  3. Step 3: Cross multiply
    72,444.74x = 99,978.54 × 40,615.70
  4. Step 4: Simplify right side
    72,444.74x = 4,060,698,387.08
  5. Step 5: Solve for x
    x = 4,060,698,387.08/72,444.74
  6. Step 6: Final answer
    x = 56,052.36

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