Finding the Fourth Proportional to 116,020.28, 160,114.29 and 65,049.35

Step by Step Solution

1. Step 1: Write the proportion equation
   116,020.28 : 160,114.29 = 65,049.35 : x
2. Step 2: Convert to fraction form
   116,020.28/160,114.29 = 65,049.35/x
3. Step 3: Cross multiply
   116,020.28x = 160,114.29 × 65,049.35
4. Step 4: Simplify right side
   116,020.28x = 10,415,329,445.71
5. Step 5: Solve for x
   x = 10,415,329,445.71/116,020.28
6. Step 6: Final answer
   x = 89,771.63