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Finding the Fourth Proportional to 24,428.40, 36,642.60 and 12,764.40

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Solution

The fourth proportional to 24,428.40, 36,642.60 and 12,764.40 is: 19,146.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    24,428.40 : 36,642.60 = 12,764.40 : x
  2. Step 2: Convert to fraction form
    24,428.40/36,642.60 = 12,764.40/x
  3. Step 3: Cross multiply
    24,428.40x = 36,642.60 × 12,764.40
  4. Step 4: Simplify right side
    24,428.40x = 467,720,803.44
  5. Step 5: Solve for x
    x = 467,720,803.44/24,428.40
  6. Step 6: Final answer
    x = 19,146.60

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