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Finding the Fourth Proportional to 42,377.12, 63,568.72 and 11,212

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Solution

The fourth proportional to 42,377.12, 63,568.72 and 11,212 is: 16,818.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,377.12 : 63,568.72 = 11,212 : x
  2. Step 2: Convert to fraction form
    42,377.12/63,568.72 = 11,212/x
  3. Step 3: Cross multiply
    42,377.12x = 63,568.72 × 11,212
  4. Step 4: Simplify right side
    42,377.12x = 712,732,488.64
  5. Step 5: Solve for x
    x = 712,732,488.64/42,377.12
  6. Step 6: Final answer
    x = 16,818.80

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