Finding the Fourth Proportional to 13,522.48, 18,661.76 and 7,554.16

Step by Step Solution

1. Step 1: Write the proportion equation
   13,522.48 : 18,661.76 = 7,554.16 : x
2. Step 2: Convert to fraction form
   13,522.48/18,661.76 = 7,554.16/x
3. Step 3: Cross multiply
   13,522.48x = 18,661.76 × 7,554.16
4. Step 4: Simplify right side
   13,522.48x = 140,973,920.92
5. Step 5: Solve for x
   x = 140,973,920.92/13,522.48
6. Step 6: Final answer
   x = 10,425.15