Finding the Fourth Proportional to 116,617.89, 161,023.10 and 91,079.67

Step by Step Solution

1. Step 1: Write the proportion equation
   116,617.89 : 161,023.10 = 91,079.67 : x
2. Step 2: Convert to fraction form
   116,617.89/161,023.10 = 91,079.67/x
3. Step 3: Cross multiply
   116,617.89x = 161,023.10 × 91,079.67
4. Step 4: Simplify right side
   116,617.89x = 14,665,930,810.38
5. Step 5: Solve for x
   x = 14,665,930,810.38/116,617.89
6. Step 6: Final answer
   x = 125,760.56