Finding the Fourth Proportional to 22,803, 31,470.06 and 12,868.92

Step by Step Solution

1. Step 1: Write the proportion equation
   22,803 : 31,470.06 = 12,868.92 : x
2. Step 2: Convert to fraction form
   22,803/31,470.06 = 12,868.92/x
3. Step 3: Cross multiply
   22,803x = 31,470.06 × 12,868.92
4. Step 4: Simplify right side
   22,803x = 404,985,684.54
5. Step 5: Solve for x
   x = 404,985,684.54/22,803
6. Step 6: Final answer
   x = 17,760.19