Finding the Fourth Proportional to 132,513.57, 182,863.98 and 72,081.90

Step by Step Solution

1. Step 1: Write the proportion equation
   132,513.57 : 182,863.98 = 72,081.90 : x
2. Step 2: Convert to fraction form
   132,513.57/182,863.98 = 72,081.90/x
3. Step 3: Cross multiply
   132,513.57x = 182,863.98 × 72,081.90
4. Step 4: Simplify right side
   132,513.57x = 13,181,183,119.96
5. Step 5: Solve for x
   x = 13,181,183,119.96/132,513.57
6. Step 6: Final answer
   x = 99,470.44