Finding the Fourth Proportional to 12,511.72, 18,764.88 and 3,744.28

Step by Step Solution

1. Step 1: Write the proportion equation
   12,511.72 : 18,764.88 = 3,744.28 : x
2. Step 2: Convert to fraction form
   12,511.72/18,764.88 = 3,744.28/x
3. Step 3: Cross multiply
   12,511.72x = 18,764.88 × 3,744.28
4. Step 4: Simplify right side
   12,511.72x = 70,260,964.89
5. Step 5: Solve for x
   x = 70,260,964.89/12,511.72
6. Step 6: Final answer
   x = 5,615.61