Finding the Fourth Proportional to 12,058.72, 18,085.64 and 3,292.90

Step by Step Solution

1. Step 1: Write the proportion equation
   12,058.72 : 18,085.64 = 3,292.90 : x
2. Step 2: Convert to fraction form
   12,058.72/18,085.64 = 3,292.90/x
3. Step 3: Cross multiply
   12,058.72x = 18,085.64 × 3,292.90
4. Step 4: Simplify right side
   12,058.72x = 59,554,203.96
5. Step 5: Solve for x
   x = 59,554,203.96/12,058.72
6. Step 6: Final answer
   x = 4,938.68