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Finding the Fourth Proportional to 68,673.42, 102,998.32 and 20,641.30

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Solution

The fourth proportional to 68,673.42, 102,998.32 and 20,641.30 is: 30,958.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,673.42 : 102,998.32 = 20,641.30 : x
  2. Step 2: Convert to fraction form
    68,673.42/102,998.32 = 20,641.30/x
  3. Step 3: Cross multiply
    68,673.42x = 102,998.32 × 20,641.30
  4. Step 4: Simplify right side
    68,673.42x = 2,126,018,913.52
  5. Step 5: Solve for x
    x = 2,126,018,913.52/68,673.42
  6. Step 6: Final answer
    x = 30,958.40

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