Finding the Fourth Proportional to 16,480.59, 22,746.96 and 12,888.47

Step by Step Solution

1. Step 1: Write the proportion equation
   16,480.59 : 22,746.96 = 12,888.47 : x
2. Step 2: Convert to fraction form
   16,480.59/22,746.96 = 12,888.47/x
3. Step 3: Cross multiply
   16,480.59x = 22,746.96 × 12,888.47
4. Step 4: Simplify right side
   16,480.59x = 293,173,511.55
5. Step 5: Solve for x
   x = 293,173,511.55/16,480.59
6. Step 6: Final answer
   x = 17,789.02