Finding the Fourth Proportional to 22,498.64, 31,049 and 12,427.60

Step by Step Solution

1. Step 1: Write the proportion equation
   22,498.64 : 31,049 = 12,427.60 : x
2. Step 2: Convert to fraction form
   22,498.64/31,049 = 12,427.60/x
3. Step 3: Cross multiply
   22,498.64x = 31,049 × 12,427.60
4. Step 4: Simplify right side
   22,498.64x = 385,864,552.40
5. Step 5: Solve for x
   x = 385,864,552.40/22,498.64
6. Step 6: Final answer
   x = 17,150.57