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Finding the Fourth Proportional to 42,375.12, 63,537.96 and 12,784.08

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Solution

The fourth proportional to 42,375.12, 63,537.96 and 12,784.08 is: 19,168.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,375.12 : 63,537.96 = 12,784.08 : x
  2. Step 2: Convert to fraction form
    42,375.12/63,537.96 = 12,784.08/x
  3. Step 3: Cross multiply
    42,375.12x = 63,537.96 × 12,784.08
  4. Step 4: Simplify right side
    42,375.12x = 812,274,363.68
  5. Step 5: Solve for x
    x = 812,274,363.68/42,375.12
  6. Step 6: Final answer
    x = 19,168.66

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