Finding the Fourth Proportional to 12,268.51, 18,399.12 and 4,475.50

Step by Step Solution

1. Step 1: Write the proportion equation
   12,268.51 : 18,399.12 = 4,475.50 : x
2. Step 2: Convert to fraction form
   12,268.51/18,399.12 = 4,475.50/x
3. Step 3: Cross multiply
   12,268.51x = 18,399.12 × 4,475.50
4. Step 4: Simplify right side
   12,268.51x = 82,345,261.56
5. Step 5: Solve for x
   x = 82,345,261.56/12,268.51
6. Step 6: Final answer
   x = 6,711.92