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Finding the Fourth Proportional to 37,428.64, 56,130.80 and 12,461.96

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Solution

The fourth proportional to 37,428.64, 56,130.80 and 12,461.96 is: 18,688.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,428.64 : 56,130.80 = 12,461.96 : x
  2. Step 2: Convert to fraction form
    37,428.64/56,130.80 = 12,461.96/x
  3. Step 3: Cross multiply
    37,428.64x = 56,130.80 × 12,461.96
  4. Step 4: Simplify right side
    37,428.64x = 699,499,862.39
  5. Step 5: Solve for x
    x = 699,499,862.39/37,428.64
  6. Step 6: Final answer
    x = 18,688.89

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