Finding the Fourth Proportional to 9,007.74, 12,432.89 and 5,473.31

Step by Step Solution

1. Step 1: Write the proportion equation
   9,007.74 : 12,432.89 = 5,473.31 : x
2. Step 2: Convert to fraction form
   9,007.74/12,432.89 = 5,473.31/x
3. Step 3: Cross multiply
   9,007.74x = 12,432.89 × 5,473.31
4. Step 4: Simplify right side
   9,007.74x = 68,049,012.68
5. Step 5: Solve for x
   x = 68,049,012.68/9,007.74
6. Step 6: Final answer
   x = 7,554.50