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Finding the Fourth Proportional to 47,874.41, 71,811.61 and 12,813.15

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Solution

The fourth proportional to 47,874.41, 71,811.61 and 12,813.15 is: 19,219.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,874.41 : 71,811.61 = 12,813.15 : x
  2. Step 2: Convert to fraction form
    47,874.41/71,811.61 = 12,813.15/x
  3. Step 3: Cross multiply
    47,874.41x = 71,811.61 × 12,813.15
  4. Step 4: Simplify right side
    47,874.41x = 920,132,930.67
  5. Step 5: Solve for x
    x = 920,132,930.67/47,874.41
  6. Step 6: Final answer
    x = 19,219.72

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