Finding the Fourth Proportional to 12,259.92, 18,386.83 and 3,494.91

Step by Step Solution

1. Step 1: Write the proportion equation
   12,259.92 : 18,386.83 = 3,494.91 : x
2. Step 2: Convert to fraction form
   12,259.92/18,386.83 = 3,494.91/x
3. Step 3: Cross multiply
   12,259.92x = 18,386.83 × 3,494.91
4. Step 4: Simplify right side
   12,259.92x = 64,260,316.04
5. Step 5: Solve for x
   x = 64,260,316.04/12,259.92
6. Step 6: Final answer
   x = 5,241.50