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Finding the Fourth Proportional to 105,288.64, 157,909.71 and 30,392.51

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Solution

The fourth proportional to 105,288.64, 157,909.71 and 30,392.51 is: 45,582.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,288.64 : 157,909.71 = 30,392.51 : x
  2. Step 2: Convert to fraction form
    105,288.64/157,909.71 = 30,392.51/x
  3. Step 3: Cross multiply
    105,288.64x = 157,909.71 × 30,392.51
  4. Step 4: Simplify right side
    105,288.64x = 4,799,272,288.31
  5. Step 5: Solve for x
    x = 4,799,272,288.31/105,288.64
  6. Step 6: Final answer
    x = 45,582.05

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