Finding the Fourth Proportional to 116,786.72, 161,168.88 and 71,463.88

Step by Step Solution

1. Step 1: Write the proportion equation
   116,786.72 : 161,168.88 = 71,463.88 : x
2. Step 2: Convert to fraction form
   116,786.72/161,168.88 = 71,463.88/x
3. Step 3: Cross multiply
   116,786.72x = 161,168.88 × 71,463.88
4. Step 4: Simplify right side
   116,786.72x = 11,517,753,500.05
5. Step 5: Solve for x
   x = 11,517,753,500.05/116,786.72
6. Step 6: Final answer
   x = 98,622.12