Finding the Fourth Proportional to 3,118.04, 4,321.10 and 3,058.91

Step by Step Solution

1. Step 1: Write the proportion equation
   3,118.04 : 4,321.10 = 3,058.91 : x
2. Step 2: Convert to fraction form
   3,118.04/4,321.10 = 3,058.91/x
3. Step 3: Cross multiply
   3,118.04x = 4,321.10 × 3,058.91
4. Step 4: Simplify right side
   3,118.04x = 13,217,842.04
5. Step 5: Solve for x
   x = 13,217,842.04/3,118.04
6. Step 6: Final answer
   x = 4,239.15