Finding the Fourth Proportional to 8,749.69, 12,074.27 and 4,972.79

Step by Step Solution

1. Step 1: Write the proportion equation
   8,749.69 : 12,074.27 = 4,972.79 : x
2. Step 2: Convert to fraction form
   8,749.69/12,074.27 = 4,972.79/x
3. Step 3: Cross multiply
   8,749.69x = 12,074.27 × 4,972.79
4. Step 4: Simplify right side
   8,749.69x = 60,042,774.49
5. Step 5: Solve for x
   x = 60,042,774.49/8,749.69
6. Step 6: Final answer
   x = 6,862.27