Finding the Fourth Proportional to 12,521.55, 18,776.85 and 3,754.71

Step by Step Solution

1. Step 1: Write the proportion equation
   12,521.55 : 18,776.85 = 3,754.71 : x
2. Step 2: Convert to fraction form
   12,521.55/18,776.85 = 3,754.71/x
3. Step 3: Cross multiply
   12,521.55x = 18,776.85 × 3,754.71
4. Step 4: Simplify right side
   12,521.55x = 70,501,626.46
5. Step 5: Solve for x
   x = 70,501,626.46/12,521.55
6. Step 6: Final answer
   x = 5,630.42