Finding the Fourth Proportional to 9,738.24, 14,611.20 and 5,118.72

Step by Step Solution

1. Step 1: Write the proportion equation
   9,738.24 : 14,611.20 = 5,118.72 : x
2. Step 2: Convert to fraction form
   9,738.24/14,611.20 = 5,118.72/x
3. Step 3: Cross multiply
   9,738.24x = 14,611.20 × 5,118.72
4. Step 4: Simplify right side
   9,738.24x = 74,790,641.66
5. Step 5: Solve for x
   x = 74,790,641.66/9,738.24
6. Step 6: Final answer
   x = 7,680.10