Finding the Fourth Proportional to 116,799.29, 161,186.38 and 65,812.62

Step by Step Solution

1. Step 1: Write the proportion equation
   116,799.29 : 161,186.38 = 65,812.62 : x
2. Step 2: Convert to fraction form
   116,799.29/161,186.38 = 65,812.62/x
3. Step 3: Cross multiply
   116,799.29x = 161,186.38 × 65,812.62
4. Step 4: Simplify right side
   116,799.29x = 10,608,098,416.03
5. Step 5: Solve for x
   x = 10,608,098,416.03/116,799.29
6. Step 6: Final answer
   x = 90,823.31