Finding the Fourth Proportional to 12,763.68, 17,613.90 and 7,457.52

Step by Step Solution

1. Step 1: Write the proportion equation
   12,763.68 : 17,613.90 = 7,457.52 : x
2. Step 2: Convert to fraction form
   12,763.68/17,613.90 = 7,457.52/x
3. Step 3: Cross multiply
   12,763.68x = 17,613.90 × 7,457.52
4. Step 4: Simplify right side
   12,763.68x = 131,356,011.53
5. Step 5: Solve for x
   x = 131,356,011.53/12,763.68
6. Step 6: Final answer
   x = 10,291.39