Finding the Fourth Proportional to 116,561.26, 160,854.28 and 65,574.02

Step by Step Solution

1. Step 1: Write the proportion equation
   116,561.26 : 160,854.28 = 65,574.02 : x
2. Step 2: Convert to fraction form
   116,561.26/160,854.28 = 65,574.02/x
3. Step 3: Cross multiply
   116,561.26x = 160,854.28 × 65,574.02
4. Step 4: Simplify right side
   116,561.26x = 10,547,861,773.81
5. Step 5: Solve for x
   x = 10,547,861,773.81/116,561.26
6. Step 6: Final answer
   x = 90,492.00