Finding the Fourth Proportional to 22,570.22, 31,147.00 and 12,498.45

Step by Step Solution

1. Step 1: Write the proportion equation
   22,570.22 : 31,147.00 = 12,498.45 : x
2. Step 2: Convert to fraction form
   22,570.22/31,147.00 = 12,498.45/x
3. Step 3: Cross multiply
   22,570.22x = 31,147.00 × 12,498.45
4. Step 4: Simplify right side
   22,570.22x = 389,289,206.78
5. Step 5: Solve for x
   x = 389,289,206.78/22,570.22
6. Step 6: Final answer
   x = 17,247.91