Finding the Fourth Proportional to 9,932.31, 13,705.90 and 5,456.25

Step by Step Solution

1. Step 1: Write the proportion equation
   9,932.31 : 13,705.90 = 5,456.25 : x
2. Step 2: Convert to fraction form
   9,932.31/13,705.90 = 5,456.25/x
3. Step 3: Cross multiply
   9,932.31x = 13,705.90 × 5,456.25
4. Step 4: Simplify right side
   9,932.31x = 74,782,816.88
5. Step 5: Solve for x
   x = 74,782,816.88/9,932.31
6. Step 6: Final answer
   x = 7,529.25