Finding the Fourth Proportional to 116,301.72, 160,495.92 and 65,307.36

Step by Step Solution

1. Step 1: Write the proportion equation
   116,301.72 : 160,495.92 = 65,307.36 : x
2. Step 2: Convert to fraction form
   116,301.72/160,495.92 = 65,307.36/x
3. Step 3: Cross multiply
   116,301.72x = 160,495.92 × 65,307.36
4. Step 4: Simplify right side
   116,301.72x = 10,481,564,825.97
5. Step 5: Solve for x
   x = 10,481,564,825.97/116,301.72
6. Step 6: Final answer
   x = 90,123.90