Finding the Fourth Proportional to 132,539.75, 182,902.83 and 72,109.01

Step by Step Solution

1. Step 1: Write the proportion equation
   132,539.75 : 182,902.83 = 72,109.01 : x
2. Step 2: Convert to fraction form
   132,539.75/182,902.83 = 72,109.01/x
3. Step 3: Cross multiply
   132,539.75x = 182,902.83 × 72,109.01
4. Step 4: Simplify right side
   132,539.75x = 13,188,941,082.98
5. Step 5: Solve for x
   x = 13,188,941,082.98/132,539.75
6. Step 6: Final answer
   x = 99,509.33