Finding the Fourth Proportional to 13,483.85, 18,608.34 and 7,515.56

Step by Step Solution

1. Step 1: Write the proportion equation
   13,483.85 : 18,608.34 = 7,515.56 : x
2. Step 2: Convert to fraction form
   13,483.85/18,608.34 = 7,515.56/x
3. Step 3: Cross multiply
   13,483.85x = 18,608.34 × 7,515.56
4. Step 4: Simplify right side
   13,483.85x = 139,852,002.73
5. Step 5: Solve for x
   x = 139,852,002.73/13,483.85
6. Step 6: Final answer
   x = 10,371.82