Finding the Fourth Proportional to 13,491.15, 18,616.91 and 7,522.46

Step by Step Solution

1. Step 1: Write the proportion equation
   13,491.15 : 18,616.91 = 7,522.46 : x
2. Step 2: Convert to fraction form
   13,491.15/18,616.91 = 7,522.46/x
3. Step 3: Cross multiply
   13,491.15x = 18,616.91 × 7,522.46
4. Step 4: Simplify right side
   13,491.15x = 140,045,026.15
5. Step 5: Solve for x
   x = 140,045,026.15/13,491.15
6. Step 6: Final answer
   x = 10,380.51