Finding the Fourth Proportional to 12,263.17, 18,391.71 and 3,498.16

Step by Step Solution

1. Step 1: Write the proportion equation
   12,263.17 : 18,391.71 = 3,498.16 : x
2. Step 2: Convert to fraction form
   12,263.17/18,391.71 = 3,498.16/x
3. Step 3: Cross multiply
   12,263.17x = 18,391.71 × 3,498.16
4. Step 4: Simplify right side
   12,263.17x = 64,337,144.25
5. Step 5: Solve for x
   x = 64,337,144.25/12,263.17
6. Step 6: Final answer
   x = 5,246.37