Finding the Fourth Proportional to 4,238.88, 5,832.24 and 4,140.72

Step by Step Solution

1. Step 1: Write the proportion equation
   4,238.88 : 5,832.24 = 4,140.72 : x
2. Step 2: Convert to fraction form
   4,238.88/5,832.24 = 4,140.72/x
3. Step 3: Cross multiply
   4,238.88x = 5,832.24 × 4,140.72
4. Step 4: Simplify right side
   4,238.88x = 24,149,672.81
5. Step 5: Solve for x
   x = 24,149,672.81/4,238.88
6. Step 6: Final answer
   x = 5,697.18