Finding the Fourth Proportional to 22,700.22, 31,326.30 and 12,628.56

Step by Step Solution

1. Step 1: Write the proportion equation
   22,700.22 : 31,326.30 = 12,628.56 : x
2. Step 2: Convert to fraction form
   22,700.22/31,326.30 = 12,628.56/x
3. Step 3: Cross multiply
   22,700.22x = 31,326.30 × 12,628.56
4. Step 4: Simplify right side
   22,700.22x = 395,606,059.13
5. Step 5: Solve for x
   x = 395,606,059.13/22,700.22
6. Step 6: Final answer
   x = 17,427.41