Finding the Fourth Proportional to 22,223.06, 30,669.71 and 12,665.87

Step by Step Solution

1. Step 1: Write the proportion equation
   22,223.06 : 30,669.71 = 12,665.87 : x
2. Step 2: Convert to fraction form
   22,223.06/30,669.71 = 12,665.87/x
3. Step 3: Cross multiply
   22,223.06x = 30,669.71 × 12,665.87
4. Step 4: Simplify right side
   22,223.06x = 388,458,343.12
5. Step 5: Solve for x
   x = 388,458,343.12/22,223.06
6. Step 6: Final answer
   x = 17,479.97