Finding the Fourth Proportional to 116,088.68, 160,191.18 and 65,103.50

Step by Step Solution

1. Step 1: Write the proportion equation
   116,088.68 : 160,191.18 = 65,103.50 : x
2. Step 2: Convert to fraction form
   116,088.68/160,191.18 = 65,103.50/x
3. Step 3: Cross multiply
   116,088.68x = 160,191.18 × 65,103.50
4. Step 4: Simplify right side
   116,088.68x = 10,429,005,686.17
5. Step 5: Solve for x
   x = 10,429,005,686.17/116,088.68
6. Step 6: Final answer
   x = 89,836.55