Finding the Fourth Proportional to 139,825.47, 209,347.32 and 75,553.32

Step by Step Solution

1. Step 1: Write the proportion equation
   139,825.47 : 209,347.32 = 75,553.32 : x
2. Step 2: Convert to fraction form
   139,825.47/209,347.32 = 75,553.32/x
3. Step 3: Cross multiply
   139,825.47x = 209,347.32 × 75,553.32
4. Step 4: Simplify right side
   139,825.47x = 15,816,885,059.10
5. Step 5: Solve for x
   x = 15,816,885,059.10/139,825.47
6. Step 6: Final answer
   x = 113,118.77