Finding the Fourth Proportional to 22,498.07, 31,053.33 and 12,938.99

Step by Step Solution

1. Step 1: Write the proportion equation
   22,498.07 : 31,053.33 = 12,938.99 : x
2. Step 2: Convert to fraction form
   22,498.07/31,053.33 = 12,938.99/x
3. Step 3: Cross multiply
   22,498.07x = 31,053.33 × 12,938.99
4. Step 4: Simplify right side
   22,498.07x = 401,798,571.07
5. Step 5: Solve for x
   x = 401,798,571.07/22,498.07
6. Step 6: Final answer
   x = 17,859.25