Finding the Fourth Proportional to 132,577.50, 182,956.98 and 72,961.50

Step by Step Solution

1. Step 1: Write the proportion equation
   132,577.50 : 182,956.98 = 72,961.50 : x
2. Step 2: Convert to fraction form
   132,577.50/182,956.98 = 72,961.50/x
3. Step 3: Cross multiply
   132,577.50x = 182,956.98 × 72,961.50
4. Step 4: Simplify right side
   132,577.50x = 13,348,815,696.27
5. Step 5: Solve for x
   x = 13,348,815,696.27/132,577.50
6. Step 6: Final answer
   x = 100,686.89