Finding the Fourth Proportional to 116,104.03, 160,225.37 and 65,128.08

Step by Step Solution

1. Step 1: Write the proportion equation
   116,104.03 : 160,225.37 = 65,128.08 : x
2. Step 2: Convert to fraction form
   116,104.03/160,225.37 = 65,128.08/x
3. Step 3: Cross multiply
   116,104.03x = 160,225.37 × 65,128.08
4. Step 4: Simplify right side
   116,104.03x = 10,435,170,715.39
5. Step 5: Solve for x
   x = 10,435,170,715.39/116,104.03
6. Step 6: Final answer
   x = 89,877.76