Finding the Fourth Proportional to 12,290.43, 16,962.10 and 7,513.17

Step by Step Solution

1. Step 1: Write the proportion equation
   12,290.43 : 16,962.10 = 7,513.17 : x
2. Step 2: Convert to fraction form
   12,290.43/16,962.10 = 7,513.17/x
3. Step 3: Cross multiply
   12,290.43x = 16,962.10 × 7,513.17
4. Step 4: Simplify right side
   12,290.43x = 127,439,204.46
5. Step 5: Solve for x
   x = 127,439,204.46/12,290.43
6. Step 6: Final answer
   x = 10,368.98