Finding the Fourth Proportional to 22,498.58, 31,048.28 and 12,427.28

Step by Step Solution

1. Step 1: Write the proportion equation
   22,498.58 : 31,048.28 = 12,427.28 : x
2. Step 2: Convert to fraction form
   22,498.58/31,048.28 = 12,427.28/x
3. Step 3: Cross multiply
   22,498.58x = 31,048.28 × 12,427.28
4. Step 4: Simplify right side
   22,498.58x = 385,845,669.08
5. Step 5: Solve for x
   x = 385,845,669.08/22,498.58
6. Step 6: Final answer
   x = 17,149.78