Finding the Fourth Proportional to 14,323.50, 21,490.72 and 5,559.10

Step by Step Solution

1. Step 1: Write the proportion equation
   14,323.50 : 21,490.72 = 5,559.10 : x
2. Step 2: Convert to fraction form
   14,323.50/21,490.72 = 5,559.10/x
3. Step 3: Cross multiply
   14,323.50x = 21,490.72 × 5,559.10
4. Step 4: Simplify right side
   14,323.50x = 119,468,993.93
5. Step 5: Solve for x
   x = 119,468,993.93/14,323.50
6. Step 6: Final answer
   x = 8,340.77