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Finding the Fourth Proportional to 74,916.44, 112,378.97 and 28,169.72

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Solution

The fourth proportional to 74,916.44, 112,378.97 and 28,169.72 is: 42,256.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,916.44 : 112,378.97 = 28,169.72 : x
  2. Step 2: Convert to fraction form
    74,916.44/112,378.97 = 28,169.72/x
  3. Step 3: Cross multiply
    74,916.44x = 112,378.97 × 28,169.72
  4. Step 4: Simplify right side
    74,916.44x = 3,165,683,556.89
  5. Step 5: Solve for x
    x = 3,165,683,556.89/74,916.44
  6. Step 6: Final answer
    x = 42,256.20

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