Finding the Fourth Proportional to 139,744.68, 192,975.72 and 88,773.88

Step by Step Solution

1. Step 1: Write the proportion equation
   139,744.68 : 192,975.72 = 88,773.88 : x
2. Step 2: Convert to fraction form
   139,744.68/192,975.72 = 88,773.88/x
3. Step 3: Cross multiply
   139,744.68x = 192,975.72 × 88,773.88
4. Step 4: Simplify right side
   139,744.68x = 17,131,203,410.19
5. Step 5: Solve for x
   x = 17,131,203,410.19/139,744.68
6. Step 6: Final answer
   x = 122,589.31