Finding the Fourth Proportional to 22,478.02, 31,012.80 and 13,044.76

Step by Step Solution

1. Step 1: Write the proportion equation
   22,478.02 : 31,012.80 = 13,044.76 : x
2. Step 2: Convert to fraction form
   22,478.02/31,012.80 = 13,044.76/x
3. Step 3: Cross multiply
   22,478.02x = 31,012.80 × 13,044.76
4. Step 4: Simplify right side
   22,478.02x = 404,554,532.93
5. Step 5: Solve for x
   x = 404,554,532.93/22,478.02
6. Step 6: Final answer
   x = 17,997.78