Finding the Fourth Proportional to 139,983.88, 193,117.02 and 88,969.32

Step by Step Solution

1. Step 1: Write the proportion equation
   139,983.88 : 193,117.02 = 88,969.32 : x
2. Step 2: Convert to fraction form
   139,983.88/193,117.02 = 88,969.32/x
3. Step 3: Cross multiply
   139,983.88x = 193,117.02 × 88,969.32
4. Step 4: Simplify right side
   139,983.88x = 17,181,489,949.83
5. Step 5: Solve for x
   x = 17,181,489,949.83/139,983.88
6. Step 6: Final answer
   x = 122,739.06