Finding the Fourth Proportional to 11,400.72, 17,099.84 and 3,081.52

Step by Step Solution

1. Step 1: Write the proportion equation
   11,400.72 : 17,099.84 = 3,081.52 : x
2. Step 2: Convert to fraction form
   11,400.72/17,099.84 = 3,081.52/x
3. Step 3: Cross multiply
   11,400.72x = 17,099.84 × 3,081.52
4. Step 4: Simplify right side
   11,400.72x = 52,693,498.96
5. Step 5: Solve for x
   x = 52,693,498.96/11,400.72
6. Step 6: Final answer
   x = 4,621.94