Finding the Fourth Proportional to 7,789.16, 10,749.30 and 4,252.72

Step by Step Solution

1. Step 1: Write the proportion equation
   7,789.16 : 10,749.30 = 4,252.72 : x
2. Step 2: Convert to fraction form
   7,789.16/10,749.30 = 4,252.72/x
3. Step 3: Cross multiply
   7,789.16x = 10,749.30 × 4,252.72
4. Step 4: Simplify right side
   7,789.16x = 45,713,763.10
5. Step 5: Solve for x
   x = 45,713,763.10/7,789.16
6. Step 6: Final answer
   x = 5,868.90