Finding the Fourth Proportional to 8,155.85, 12,238.38 and 3,475.37

Step by Step Solution

1. Step 1: Write the proportion equation
   8,155.85 : 12,238.38 = 3,475.37 : x
2. Step 2: Convert to fraction form
   8,155.85/12,238.38 = 3,475.37/x
3. Step 3: Cross multiply
   8,155.85x = 12,238.38 × 3,475.37
4. Step 4: Simplify right side
   8,155.85x = 42,532,820.13
5. Step 5: Solve for x
   x = 42,532,820.13/8,155.85
6. Step 6: Final answer
   x = 5,215.01