Finding the Fourth Proportional to 9,724.84, 13,418.88 and 5,475.31

Step by Step Solution

1. Step 1: Write the proportion equation
   9,724.84 : 13,418.88 = 5,475.31 : x
2. Step 2: Convert to fraction form
   9,724.84/13,418.88 = 5,475.31/x
3. Step 3: Cross multiply
   9,724.84x = 13,418.88 × 5,475.31
4. Step 4: Simplify right side
   9,724.84x = 73,472,527.85
5. Step 5: Solve for x
   x = 73,472,527.85/9,724.84
6. Step 6: Final answer
   x = 7,555.14