Finding the Fourth Proportional to 116,715.29, 161,065.49 and 65,732.99

Step by Step Solution

1. Step 1: Write the proportion equation
   116,715.29 : 161,065.49 = 65,732.99 : x
2. Step 2: Convert to fraction form
   116,715.29/161,065.49 = 65,732.99/x
3. Step 3: Cross multiply
   116,715.29x = 161,065.49 × 65,732.99
4. Step 4: Simplify right side
   116,715.29x = 10,587,315,109.52
5. Step 5: Solve for x
   x = 10,587,315,109.52/116,715.29
6. Step 6: Final answer
   x = 90,710.61