Finding the Fourth Proportional to 139,119.72, 191,957.22 and 88,152.36

Step by Step Solution

1. Step 1: Write the proportion equation
   139,119.72 : 191,957.22 = 88,152.36 : x
2. Step 2: Convert to fraction form
   139,119.72/191,957.22 = 88,152.36/x
3. Step 3: Cross multiply
   139,119.72x = 191,957.22 × 88,152.36
4. Step 4: Simplify right side
   139,119.72x = 16,921,481,962.04
5. Step 5: Solve for x
   x = 16,921,481,962.04/139,119.72
6. Step 6: Final answer
   x = 121,632.52