Finding the Fourth Proportional to 116,129.58, 160,260.56 and 65,153.58

Step by Step Solution

1. Step 1: Write the proportion equation
   116,129.58 : 160,260.56 = 65,153.58 : x
2. Step 2: Convert to fraction form
   116,129.58/160,260.56 = 65,153.58/x
3. Step 3: Cross multiply
   116,129.58x = 160,260.56 × 65,153.58
4. Step 4: Simplify right side
   116,129.58x = 10,441,549,216.80
5. Step 5: Solve for x
   x = 10,441,549,216.80/116,129.58
6. Step 6: Final answer
   x = 89,912.92