Finding the Fourth Proportional to 116,356.55, 160,554.51 and 65,359.49

Step by Step Solution

1. Step 1: Write the proportion equation
   116,356.55 : 160,554.51 = 65,359.49 : x
2. Step 2: Convert to fraction form
   116,356.55/160,554.51 = 65,359.49/x
3. Step 3: Cross multiply
   116,356.55x = 160,554.51 × 65,359.49
4. Step 4: Simplify right side
   116,356.55x = 10,493,760,088.03
5. Step 5: Solve for x
   x = 10,493,760,088.03/116,356.55
6. Step 6: Final answer
   x = 90,186.25