Finding the Fourth Proportional to 13,002.45, 19,517.15 and 8,008.39

Step by Step Solution

1. Step 1: Write the proportion equation
   13,002.45 : 19,517.15 = 8,008.39 : x
2. Step 2: Convert to fraction form
   13,002.45/19,517.15 = 8,008.39/x
3. Step 3: Cross multiply
   13,002.45x = 19,517.15 × 8,008.39
4. Step 4: Simplify right side
   13,002.45x = 156,300,948.89
5. Step 5: Solve for x
   x = 156,300,948.89/13,002.45
6. Step 6: Final answer
   x = 12,020.88