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Finding the Fourth Proportional to 78,425.82, 108,225.45 and 42,614.64

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Solution

The fourth proportional to 78,425.82, 108,225.45 and 42,614.64 is: 58,807.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,425.82 : 108,225.45 = 42,614.64 : x
  2. Step 2: Convert to fraction form
    78,425.82/108,225.45 = 42,614.64/x
  3. Step 3: Cross multiply
    78,425.82x = 108,225.45 × 42,614.64
  4. Step 4: Simplify right side
    78,425.82x = 4,611,988,590.59
  5. Step 5: Solve for x
    x = 4,611,988,590.59/78,425.82
  6. Step 6: Final answer
    x = 58,807.02

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