Finding the Fourth Proportional to 99,182.72, 136,871.96 and 54,470.72

Step by Step Solution

1. Step 1: Write the proportion equation
   99,182.72 : 136,871.96 = 54,470.72 : x
2. Step 2: Convert to fraction form
   99,182.72/136,871.96 = 54,470.72/x
3. Step 3: Cross multiply
   99,182.72x = 136,871.96 × 54,470.72
4. Step 4: Simplify right side
   99,182.72x = 7,455,514,209.01
5. Step 5: Solve for x
   x = 7,455,514,209.01/99,182.72
6. Step 6: Final answer
   x = 75,169.49