Finding the Fourth Proportional to 12,329.61, 18,500.48 and 7,648.41

Step by Step Solution

1. Step 1: Write the proportion equation
   12,329.61 : 18,500.48 = 7,648.41 : x
2. Step 2: Convert to fraction form
   12,329.61/18,500.48 = 7,648.41/x
3. Step 3: Cross multiply
   12,329.61x = 18,500.48 × 7,648.41
4. Step 4: Simplify right side
   12,329.61x = 141,499,256.24
5. Step 5: Solve for x
   x = 141,499,256.24/12,329.61
6. Step 6: Final answer
   x = 11,476.38