Finding the Fourth Proportional to 12,443.16, 18,672.41 and 5,047.68

Step by Step Solution

1. Step 1: Write the proportion equation
   12,443.16 : 18,672.41 = 5,047.68 : x
2. Step 2: Convert to fraction form
   12,443.16/18,672.41 = 5,047.68/x
3. Step 3: Cross multiply
   12,443.16x = 18,672.41 × 5,047.68
4. Step 4: Simplify right side
   12,443.16x = 94,252,350.51
5. Step 5: Solve for x
   x = 94,252,350.51/12,443.16
6. Step 6: Final answer
   x = 7,574.63