Finding the Fourth Proportional to 12,958.22, 19,440.21 and 3,723.50

Step by Step Solution

1. Step 1: Write the proportion equation
   12,958.22 : 19,440.21 = 3,723.50 : x
2. Step 2: Convert to fraction form
   12,958.22/19,440.21 = 3,723.50/x
3. Step 3: Cross multiply
   12,958.22x = 19,440.21 × 3,723.50
4. Step 4: Simplify right side
   12,958.22x = 72,385,621.94
5. Step 5: Solve for x
   x = 72,385,621.94/12,958.22
6. Step 6: Final answer
   x = 5,586.08