Finding the Fourth Proportional to 13,522.76, 18,661.42 and 7,554.42

Step by Step Solution

1. Step 1: Write the proportion equation
   13,522.76 : 18,661.42 = 7,554.42 : x
2. Step 2: Convert to fraction form
   13,522.76/18,661.42 = 7,554.42/x
3. Step 3: Cross multiply
   13,522.76x = 18,661.42 × 7,554.42
4. Step 4: Simplify right side
   13,522.76x = 140,976,204.48
5. Step 5: Solve for x
   x = 140,976,204.48/13,522.76
6. Step 6: Final answer
   x = 10,425.11