Finding the Fourth Proportional to 11,317.33, 16,980.05 and 5,772.07

Step by Step Solution

1. Step 1: Write the proportion equation
   11,317.33 : 16,980.05 = 5,772.07 : x
2. Step 2: Convert to fraction form
   11,317.33/16,980.05 = 5,772.07/x
3. Step 3: Cross multiply
   11,317.33x = 16,980.05 × 5,772.07
4. Step 4: Simplify right side
   11,317.33x = 98,010,037.20
5. Step 5: Solve for x
   x = 98,010,037.20/11,317.33
6. Step 6: Final answer
   x = 8,660.17