Finding the Fourth Proportional to 12,164.72, 18,248.63 and 3,399.71

Step by Step Solution

1. Step 1: Write the proportion equation
   12,164.72 : 18,248.63 = 3,399.71 : x
2. Step 2: Convert to fraction form
   12,164.72/18,248.63 = 3,399.71/x
3. Step 3: Cross multiply
   12,164.72x = 18,248.63 × 3,399.71
4. Step 4: Simplify right side
   12,164.72x = 62,039,941.66
5. Step 5: Solve for x
   x = 62,039,941.66/12,164.72
6. Step 6: Final answer
   x = 5,099.99