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Finding the Fourth Proportional to 7,039.69, 10,569.92 and 3,925.78

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Solution

The fourth proportional to 7,039.69, 10,569.92 and 3,925.78 is: 5,894.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,039.69 : 10,569.92 = 3,925.78 : x
  2. Step 2: Convert to fraction form
    7,039.69/10,569.92 = 3,925.78/x
  3. Step 3: Cross multiply
    7,039.69x = 10,569.92 × 3,925.78
  4. Step 4: Simplify right side
    7,039.69x = 41,495,134.48
  5. Step 5: Solve for x
    x = 41,495,134.48/7,039.69
  6. Step 6: Final answer
    x = 5,894.46

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