Finding the Fourth Proportional to 132,540.52, 182,903.91 and 72,109.79

Step by Step Solution

1. Step 1: Write the proportion equation
   132,540.52 : 182,903.91 = 72,109.79 : x
2. Step 2: Convert to fraction form
   132,540.52/182,903.91 = 72,109.79/x
3. Step 3: Cross multiply
   132,540.52x = 182,903.91 × 72,109.79
4. Step 4: Simplify right side
   132,540.52x = 13,189,162,540.28
5. Step 5: Solve for x
   x = 13,189,162,540.28/132,540.52
6. Step 6: Final answer
   x = 99,510.42