Finding the Fourth Proportional to 9,039.25, 12,475.41 and 5,454.39

Step by Step Solution

1. Step 1: Write the proportion equation
   9,039.25 : 12,475.41 = 5,454.39 : x
2. Step 2: Convert to fraction form
   9,039.25/12,475.41 = 5,454.39/x
3. Step 3: Cross multiply
   9,039.25x = 12,475.41 × 5,454.39
4. Step 4: Simplify right side
   9,039.25x = 68,045,808.56
5. Step 5: Solve for x
   x = 68,045,808.56/9,039.25
6. Step 6: Final answer
   x = 7,527.81