Finding the Fourth Proportional to 8,541.39, 12,813.90 and 3,347.25

Step by Step Solution

1. Step 1: Write the proportion equation
   8,541.39 : 12,813.90 = 3,347.25 : x
2. Step 2: Convert to fraction form
   8,541.39/12,813.90 = 3,347.25/x
3. Step 3: Cross multiply
   8,541.39x = 12,813.90 × 3,347.25
4. Step 4: Simplify right side
   8,541.39x = 42,891,326.78
5. Step 5: Solve for x
   x = 42,891,326.78/8,541.39
6. Step 6: Final answer
   x = 5,021.59