Finding the Fourth Proportional to 14,456.88, 19,947.87 and 8,488.80

Step by Step Solution

1. Step 1: Write the proportion equation
   14,456.88 : 19,947.87 = 8,488.80 : x
2. Step 2: Convert to fraction form
   14,456.88/19,947.87 = 8,488.80/x
3. Step 3: Cross multiply
   14,456.88x = 19,947.87 × 8,488.80
4. Step 4: Simplify right side
   14,456.88x = 169,333,478.86
5. Step 5: Solve for x
   x = 169,333,478.86/14,456.88
6. Step 6: Final answer
   x = 11,713.00