Finding the Fourth Proportional to 13,517.28, 18,653.52 and 7,548.72

Step by Step Solution

1. Step 1: Write the proportion equation
   13,517.28 : 18,653.52 = 7,548.72 : x
2. Step 2: Convert to fraction form
   13,517.28/18,653.52 = 7,548.72/x
3. Step 3: Cross multiply
   13,517.28x = 18,653.52 × 7,548.72
4. Step 4: Simplify right side
   13,517.28x = 140,810,199.49
5. Step 5: Solve for x
   x = 140,810,199.49/13,517.28
6. Step 6: Final answer
   x = 10,417.05