Finding the Fourth Proportional to 7,238.75, 10,861.90 and 3,951.23

Step by Step Solution

1. Step 1: Write the proportion equation
   7,238.75 : 10,861.90 = 3,951.23 : x
2. Step 2: Convert to fraction form
   7,238.75/10,861.90 = 3,951.23/x
3. Step 3: Cross multiply
   7,238.75x = 10,861.90 × 3,951.23
4. Step 4: Simplify right side
   7,238.75x = 42,917,800.95
5. Step 5: Solve for x
   x = 42,917,800.95/7,238.75
6. Step 6: Final answer
   x = 5,928.90