Finding the Fourth Proportional to 88,538.10, 132,588.45 and 65,994.72

Step by Step Solution

1. Step 1: Write the proportion equation
   88,538.10 : 132,588.45 = 65,994.72 : x
2. Step 2: Convert to fraction form
   88,538.10/132,588.45 = 65,994.72/x
3. Step 3: Cross multiply
   88,538.10x = 132,588.45 × 65,994.72
4. Step 4: Simplify right side
   88,538.10x = 8,750,137,632.98
5. Step 5: Solve for x
   x = 8,750,137,632.98/88,538.10
6. Step 6: Final answer
   x = 98,829.06