Finding the Fourth Proportional to 116,919.15, 161,311.64 and 71,549.83

Step by Step Solution

1. Step 1: Write the proportion equation
   116,919.15 : 161,311.64 = 71,549.83 : x
2. Step 2: Convert to fraction form
   116,919.15/161,311.64 = 71,549.83/x
3. Step 3: Cross multiply
   116,919.15x = 161,311.64 × 71,549.83
4. Step 4: Simplify right side
   116,919.15x = 11,541,820,061.27
5. Step 5: Solve for x
   x = 11,541,820,061.27/116,919.15
6. Step 6: Final answer
   x = 98,716.25