Finding the Fourth Proportional to 132,439.72, 182,767.56 and 72,010.96

Step by Step Solution

1. Step 1: Write the proportion equation
   132,439.72 : 182,767.56 = 72,010.96 : x
2. Step 2: Convert to fraction form
   132,439.72/182,767.56 = 72,010.96/x
3. Step 3: Cross multiply
   132,439.72x = 182,767.56 × 72,010.96
4. Step 4: Simplify right side
   132,439.72x = 13,161,267,452.46
5. Step 5: Solve for x
   x = 13,161,267,452.46/132,439.72
6. Step 6: Final answer
   x = 99,375.53