Finding the Fourth Proportional to 12,649.62, 17,463.46 and 7,615.08

Step by Step Solution

1. Step 1: Write the proportion equation
   12,649.62 : 17,463.46 = 7,615.08 : x
2. Step 2: Convert to fraction form
   12,649.62/17,463.46 = 7,615.08/x
3. Step 3: Cross multiply
   12,649.62x = 17,463.46 × 7,615.08
4. Step 4: Simplify right side
   12,649.62x = 132,985,644.98
5. Step 5: Solve for x
   x = 132,985,644.98/12,649.62
6. Step 6: Final answer
   x = 10,513.02