Finding the Fourth Proportional to 12,336.71, 17,030.22 and 7,866.47

Step by Step Solution

1. Step 1: Write the proportion equation
   12,336.71 : 17,030.22 = 7,866.47 : x
2. Step 2: Convert to fraction form
   12,336.71/17,030.22 = 7,866.47/x
3. Step 3: Cross multiply
   12,336.71x = 17,030.22 × 7,866.47
4. Step 4: Simplify right side
   12,336.71x = 133,967,714.72
5. Step 5: Solve for x
   x = 133,967,714.72/12,336.71
6. Step 6: Final answer
   x = 10,859.27