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Finding the Fourth Proportional to 18,786.94, 25,925.97 and 10,403.44

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Solution

The fourth proportional to 18,786.94, 25,925.97 and 10,403.44 is: 14,356.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,786.94 : 25,925.97 = 10,403.44 : x
  2. Step 2: Convert to fraction form
    18,786.94/25,925.97 = 10,403.44/x
  3. Step 3: Cross multiply
    18,786.94x = 25,925.97 × 10,403.44
  4. Step 4: Simplify right side
    18,786.94x = 269,719,247.53
  5. Step 5: Solve for x
    x = 269,719,247.53/18,786.94
  6. Step 6: Final answer
    x = 14,356.74

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