Finding the Fourth Proportional to 9,007.47, 12,424.05 and 8,263.89

Step by Step Solution

1. Step 1: Write the proportion equation
   9,007.47 : 12,424.05 = 8,263.89 : x
2. Step 2: Convert to fraction form
   9,007.47/12,424.05 = 8,263.89/x
3. Step 3: Cross multiply
   9,007.47x = 12,424.05 × 8,263.89
4. Step 4: Simplify right side
   9,007.47x = 102,670,982.55
5. Step 5: Solve for x
   x = 102,670,982.55/9,007.47
6. Step 6: Final answer
   x = 11,398.43