Finding the Fourth Proportional to 9,322.72, 13,981.10 and 3,081.57

Step by Step Solution

1. Step 1: Write the proportion equation
   9,322.72 : 13,981.10 = 3,081.57 : x
2. Step 2: Convert to fraction form
   9,322.72/13,981.10 = 3,081.57/x
3. Step 3: Cross multiply
   9,322.72x = 13,981.10 × 3,081.57
4. Step 4: Simplify right side
   9,322.72x = 43,083,738.33
5. Step 5: Solve for x
   x = 43,083,738.33/9,322.72
6. Step 6: Final answer
   x = 4,621.37