Finding the Fourth Proportional to 22,487.74, 31,032.72 and 12,417.22

Step by Step Solution

1. Step 1: Write the proportion equation
   22,487.74 : 31,032.72 = 12,417.22 : x
2. Step 2: Convert to fraction form
   22,487.74/31,032.72 = 12,417.22/x
3. Step 3: Cross multiply
   22,487.74x = 31,032.72 × 12,417.22
4. Step 4: Simplify right side
   22,487.74x = 385,340,111.44
5. Step 5: Solve for x
   x = 385,340,111.44/22,487.74
6. Step 6: Final answer
   x = 17,135.56