Finding the Fourth Proportional to 132,540.03, 182,903.22 and 72,109.29

Step by Step Solution

1. Step 1: Write the proportion equation
   132,540.03 : 182,903.22 = 72,109.29 : x
2. Step 2: Convert to fraction form
   132,540.03/182,903.22 = 72,109.29/x
3. Step 3: Cross multiply
   132,540.03x = 182,903.22 × 72,109.29
4. Step 4: Simplify right side
   132,540.03x = 13,189,021,332.91
5. Step 5: Solve for x
   x = 13,189,021,332.91/132,540.03
6. Step 6: Final answer
   x = 99,509.72