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Finding the Fourth Proportional to 75,174, 103,743.36 and 41,640

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Solution

The fourth proportional to 75,174, 103,743.36 and 41,640 is: 57,464.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,174 : 103,743.36 = 41,640 : x
  2. Step 2: Convert to fraction form
    75,174/103,743.36 = 41,640/x
  3. Step 3: Cross multiply
    75,174x = 103,743.36 × 41,640
  4. Step 4: Simplify right side
    75,174x = 4,319,873,510.40
  5. Step 5: Solve for x
    x = 4,319,873,510.40/75,174
  6. Step 6: Final answer
    x = 57,464.99

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