Finding the Fourth Proportional to 8,158.98, 12,240.62 and 3,479.25

Step by Step Solution

1. Step 1: Write the proportion equation
   8,158.98 : 12,240.62 = 3,479.25 : x
2. Step 2: Convert to fraction form
   8,158.98/12,240.62 = 3,479.25/x
3. Step 3: Cross multiply
   8,158.98x = 12,240.62 × 3,479.25
4. Step 4: Simplify right side
   8,158.98x = 42,588,218.69
5. Step 5: Solve for x
   x = 42,588,218.69/8,158.98
6. Step 6: Final answer
   x = 5,219.80