Finding the Fourth Proportional to 11,627.30, 16,048.22 and 7,648.80

Step by Step Solution

1. Step 1: Write the proportion equation
   11,627.30 : 16,048.22 = 7,648.80 : x
2. Step 2: Convert to fraction form
   11,627.30/16,048.22 = 7,648.80/x
3. Step 3: Cross multiply
   11,627.30x = 16,048.22 × 7,648.80
4. Step 4: Simplify right side
   11,627.30x = 122,749,586.89
5. Step 5: Solve for x
   x = 122,749,586.89/11,627.30
6. Step 6: Final answer
   x = 10,557.02