Finding the Fourth Proportional to 13,520.34, 18,658.82 and 7,554.29

Step by Step Solution

1. Step 1: Write the proportion equation
   13,520.34 : 18,658.82 = 7,554.29 : x
2. Step 2: Convert to fraction form
   13,520.34/18,658.82 = 7,554.29/x
3. Step 3: Cross multiply
   13,520.34x = 18,658.82 × 7,554.29
4. Step 4: Simplify right side
   13,520.34x = 140,954,062.93
5. Step 5: Solve for x
   x = 140,954,062.93/13,520.34
6. Step 6: Final answer
   x = 10,425.33