Finding the Fourth Proportional to 12,762.07, 17,613.83 and 8,223.47

Step by Step Solution

1. Step 1: Write the proportion equation
   12,762.07 : 17,613.83 = 8,223.47 : x
2. Step 2: Convert to fraction form
   12,762.07/17,613.83 = 8,223.47/x
3. Step 3: Cross multiply
   12,762.07x = 17,613.83 × 8,223.47
4. Step 4: Simplify right side
   12,762.07x = 144,846,802.59
5. Step 5: Solve for x
   x = 144,846,802.59/12,762.07
6. Step 6: Final answer
   x = 11,349.79