Finding the Fourth Proportional to 10,790.66, 16,187.49 and 4,866.72

Step by Step Solution

1. Step 1: Write the proportion equation
   10,790.66 : 16,187.49 = 4,866.72 : x
2. Step 2: Convert to fraction form
   10,790.66/16,187.49 = 4,866.72/x
3. Step 3: Cross multiply
   10,790.66x = 16,187.49 × 4,866.72
4. Step 4: Simplify right side
   10,790.66x = 78,779,981.33
5. Step 5: Solve for x
   x = 78,779,981.33/10,790.66
6. Step 6: Final answer
   x = 7,300.76