Finding the Fourth Proportional to 7,749.48, 10,694.35 and 4,212.69

Step by Step Solution

1. Step 1: Write the proportion equation
   7,749.48 : 10,694.35 = 4,212.69 : x
2. Step 2: Convert to fraction form
   7,749.48/10,694.35 = 4,212.69/x
3. Step 3: Cross multiply
   7,749.48x = 10,694.35 × 4,212.69
4. Step 4: Simplify right side
   7,749.48x = 45,051,981.30
5. Step 5: Solve for x
   x = 45,051,981.30/7,749.48
6. Step 6: Final answer
   x = 5,813.55