Finding the Fourth Proportional to 8,057.32, 12,085.83 and 3,312.48

Step by Step Solution

1. Step 1: Write the proportion equation
   8,057.32 : 12,085.83 = 3,312.48 : x
2. Step 2: Convert to fraction form
   8,057.32/12,085.83 = 3,312.48/x
3. Step 3: Cross multiply
   8,057.32x = 12,085.83 × 3,312.48
4. Step 4: Simplify right side
   8,057.32x = 40,034,070.16
5. Step 5: Solve for x
   x = 40,034,070.16/8,057.32
6. Step 6: Final answer
   x = 4,968.66