Finding the Fourth Proportional to 12,504.72, 18,747.90 and 5,923.20

Step by Step Solution

1. Step 1: Write the proportion equation
   12,504.72 : 18,747.90 = 5,923.20 : x
2. Step 2: Convert to fraction form
   12,504.72/18,747.90 = 5,923.20/x
3. Step 3: Cross multiply
   12,504.72x = 18,747.90 × 5,923.20
4. Step 4: Simplify right side
   12,504.72x = 111,047,561.28
5. Step 5: Solve for x
   x = 111,047,561.28/12,504.72
6. Step 6: Final answer
   x = 8,880.45