Finding the Fourth Proportional to 5,225.42, 7,212.06 and 3,964.25

Step by Step Solution

1. Step 1: Write the proportion equation
   5,225.42 : 7,212.06 = 3,964.25 : x
2. Step 2: Convert to fraction form
   5,225.42/7,212.06 = 3,964.25/x
3. Step 3: Cross multiply
   5,225.42x = 7,212.06 × 3,964.25
4. Step 4: Simplify right side
   5,225.42x = 28,590,408.86
5. Step 5: Solve for x
   x = 28,590,408.86/5,225.42
6. Step 6: Final answer
   x = 5,471.41