Finding the Fourth Proportional to 22,544.78, 31,111.34 and 12,473.64

Step by Step Solution

1. Step 1: Write the proportion equation
   22,544.78 : 31,111.34 = 12,473.64 : x
2. Step 2: Convert to fraction form
   22,544.78/31,111.34 = 12,473.64/x
3. Step 3: Cross multiply
   22,544.78x = 31,111.34 × 12,473.64
4. Step 4: Simplify right side
   22,544.78x = 388,071,592.71
5. Step 5: Solve for x
   x = 388,071,592.71/22,544.78
6. Step 6: Final answer
   x = 17,213.37