Finding the Fourth Proportional to 132,538.54, 182,901.24 and 72,109.72

Step by Step Solution

1. Step 1: Write the proportion equation
   132,538.54 : 182,901.24 = 72,109.72 : x
2. Step 2: Convert to fraction form
   132,538.54/182,901.24 = 72,109.72/x
3. Step 3: Cross multiply
   132,538.54x = 182,901.24 × 72,109.72
4. Step 4: Simplify right side
   132,538.54x = 13,188,957,204.05
5. Step 5: Solve for x
   x = 13,188,957,204.05/132,538.54
6. Step 6: Final answer
   x = 99,510.36