Finding the Fourth Proportional to 12,498.75, 18,748.33 and 3,614.20

Step by Step Solution

1. Step 1: Write the proportion equation
   12,498.75 : 18,748.33 = 3,614.20 : x
2. Step 2: Convert to fraction form
   12,498.75/18,748.33 = 3,614.20/x
3. Step 3: Cross multiply
   12,498.75x = 18,748.33 × 3,614.20
4. Step 4: Simplify right side
   12,498.75x = 67,760,158.38
5. Step 5: Solve for x
   x = 67,760,158.38/12,498.75
6. Step 6: Final answer
   x = 5,421.35