Finding the Fourth Proportional to 11,925.59, 16,456.12 and 6,619.83

Step by Step Solution

1. Step 1: Write the proportion equation
   11,925.59 : 16,456.12 = 6,619.83 : x
2. Step 2: Convert to fraction form
   11,925.59/16,456.12 = 6,619.83/x
3. Step 3: Cross multiply
   11,925.59x = 16,456.12 × 6,619.83
4. Step 4: Simplify right side
   11,925.59x = 108,936,700.31
5. Step 5: Solve for x
   x = 108,936,700.31/11,925.59
6. Step 6: Final answer
   x = 9,134.70