Finding the Fourth Proportional to 142,634.50, 196,871.04 and 88,981.92

Step by Step Solution

1. Step 1: Write the proportion equation
   142,634.50 : 196,871.04 = 88,981.92 : x
2. Step 2: Convert to fraction form
   142,634.50/196,871.04 = 88,981.92/x
3. Step 3: Cross multiply
   142,634.50x = 196,871.04 × 88,981.92
4. Step 4: Simplify right side
   142,634.50x = 17,517,963,131.60
5. Step 5: Solve for x
   x = 17,517,963,131.60/142,634.50
6. Step 6: Final answer
   x = 122,817.15