Finding the Fourth Proportional to 116,308.71, 160,515.18 and 65,324.88

Step by Step Solution

1. Step 1: Write the proportion equation
   116,308.71 : 160,515.18 = 65,324.88 : x
2. Step 2: Convert to fraction form
   116,308.71/160,515.18 = 65,324.88/x
3. Step 3: Cross multiply
   116,308.71x = 160,515.18 × 65,324.88
4. Step 4: Simplify right side
   116,308.71x = 10,485,634,871.68
5. Step 5: Solve for x
   x = 10,485,634,871.68/116,308.71
6. Step 6: Final answer
   x = 90,153.48