Finding the Fourth Proportional to 7,412.72, 10,229.69 and 4,055.57

Step by Step Solution

1. Step 1: Write the proportion equation
   7,412.72 : 10,229.69 = 4,055.57 : x
2. Step 2: Convert to fraction form
   7,412.72/10,229.69 = 4,055.57/x
3. Step 3: Cross multiply
   7,412.72x = 10,229.69 × 4,055.57
4. Step 4: Simplify right side
   7,412.72x = 41,487,221.23
5. Step 5: Solve for x
   x = 41,487,221.23/7,412.72
6. Step 6: Final answer
   x = 5,596.76