Finding the Fourth Proportional to 7,788.50, 10,748.12 and 4,251.71

Step by Step Solution

1. Step 1: Write the proportion equation
   7,788.50 : 10,748.12 = 4,251.71 : x
2. Step 2: Convert to fraction form
   7,788.50/10,748.12 = 4,251.71/x
3. Step 3: Cross multiply
   7,788.50x = 10,748.12 × 4,251.71
4. Step 4: Simplify right side
   7,788.50x = 45,697,814.29
5. Step 5: Solve for x
   x = 45,697,814.29/7,788.50
6. Step 6: Final answer
   x = 5,867.35