Finding the Fourth Proportional to 9,155.14, 13,731.50 and 2,581.86

Step by Step Solution

1. Step 1: Write the proportion equation
   9,155.14 : 13,731.50 = 2,581.86 : x
2. Step 2: Convert to fraction form
   9,155.14/13,731.50 = 2,581.86/x
3. Step 3: Cross multiply
   9,155.14x = 13,731.50 × 2,581.86
4. Step 4: Simplify right side
   9,155.14x = 35,452,751.03
5. Step 5: Solve for x
   x = 35,452,751.03/9,155.14
6. Step 6: Final answer
   x = 3,872.44