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Finding the Fourth Proportional to 74,586.78, 102,929.76 and 40,595.40

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Solution

The fourth proportional to 74,586.78, 102,929.76 and 40,595.40 is: 56,021.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,586.78 : 102,929.76 = 40,595.40 : x
  2. Step 2: Convert to fraction form
    74,586.78/102,929.76 = 40,595.40/x
  3. Step 3: Cross multiply
    74,586.78x = 102,929.76 × 40,595.40
  4. Step 4: Simplify right side
    74,586.78x = 4,178,474,779.10
  5. Step 5: Solve for x
    x = 4,178,474,779.10/74,586.78
  6. Step 6: Final answer
    x = 56,021.65

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