Finding the Fourth Proportional to 116,568.30, 160,862.47 and 65,581.01

Step by Step Solution

1. Step 1: Write the proportion equation
   116,568.30 : 160,862.47 = 65,581.01 : x
2. Step 2: Convert to fraction form
   116,568.30/160,862.47 = 65,581.01/x
3. Step 3: Cross multiply
   116,568.30x = 160,862.47 × 65,581.01
4. Step 4: Simplify right side
   116,568.30x = 10,549,523,257.56
5. Step 5: Solve for x
   x = 10,549,523,257.56/116,568.30
6. Step 6: Final answer
   x = 90,500.79