Finding the Fourth Proportional to 136,091.46, 187,740.78 and 88,359.78

Step by Step Solution

1. Step 1: Write the proportion equation
   136,091.46 : 187,740.78 = 88,359.78 : x
2. Step 2: Convert to fraction form
   136,091.46/187,740.78 = 88,359.78/x
3. Step 3: Cross multiply
   136,091.46x = 187,740.78 × 88,359.78
4. Step 4: Simplify right side
   136,091.46x = 16,588,734,017.83
5. Step 5: Solve for x
   x = 16,588,734,017.83/136,091.46
6. Step 6: Final answer
   x = 121,894.01