Finding the Fourth Proportional to 88,945.15, 133,093.72 and 65,617.15

Step by Step Solution

1. Step 1: Write the proportion equation
   88,945.15 : 133,093.72 = 65,617.15 : x
2. Step 2: Convert to fraction form
   88,945.15/133,093.72 = 65,617.15/x
3. Step 3: Cross multiply
   88,945.15x = 133,093.72 × 65,617.15
4. Step 4: Simplify right side
   88,945.15x = 8,733,230,589.30
5. Step 5: Solve for x
   x = 8,733,230,589.30/88,945.15
6. Step 6: Final answer
   x = 98,186.70