Finding the Fourth Proportional to 8,140.10, 12,212.33 and 3,460.32

Step by Step Solution

1. Step 1: Write the proportion equation
   8,140.10 : 12,212.33 = 3,460.32 : x
2. Step 2: Convert to fraction form
   8,140.10/12,212.33 = 3,460.32/x
3. Step 3: Cross multiply
   8,140.10x = 12,212.33 × 3,460.32
4. Step 4: Simplify right side
   8,140.10x = 42,258,552.44
5. Step 5: Solve for x
   x = 42,258,552.44/8,140.10
6. Step 6: Final answer
   x = 5,191.41