Finding the Fourth Proportional to 14,817.72, 22,118.42 and 12,949.32

Step by Step Solution

1. Step 1: Write the proportion equation
   14,817.72 : 22,118.42 = 12,949.32 : x
2. Step 2: Convert to fraction form
   14,817.72/22,118.42 = 12,949.32/x
3. Step 3: Cross multiply
   14,817.72x = 22,118.42 × 12,949.32
4. Step 4: Simplify right side
   14,817.72x = 286,418,498.47
5. Step 5: Solve for x
   x = 286,418,498.47/14,817.72
6. Step 6: Final answer
   x = 19,329.46