Finding the Fourth Proportional to 139,822.47, 209,342.82 and 75,550.32

Step by Step Solution

1. Step 1: Write the proportion equation
   139,822.47 : 209,342.82 = 75,550.32 : x
2. Step 2: Convert to fraction form
   139,822.47/209,342.82 = 75,550.32/x
3. Step 3: Cross multiply
   139,822.47x = 209,342.82 × 75,550.32
4. Step 4: Simplify right side
   139,822.47x = 15,815,917,040.70
5. Step 5: Solve for x
   x = 15,815,917,040.70/139,822.47
6. Step 6: Final answer
   x = 113,114.27