Finding the Fourth Proportional to 11,789.30, 16,268.78 and 6,484.07

Step by Step Solution

1. Step 1: Write the proportion equation
   11,789.30 : 16,268.78 = 6,484.07 : x
2. Step 2: Convert to fraction form
   11,789.30/16,268.78 = 6,484.07/x
3. Step 3: Cross multiply
   11,789.30x = 16,268.78 × 6,484.07
4. Step 4: Simplify right side
   11,789.30x = 105,487,965.22
5. Step 5: Solve for x
   x = 105,487,965.22/11,789.30
6. Step 6: Final answer
   x = 8,947.77