Finding the Fourth Proportional to 8,211.33, 12,320.06 and 4,926.78

Step by Step Solution

1. Step 1: Write the proportion equation
   8,211.33 : 12,320.06 = 4,926.78 : x
2. Step 2: Convert to fraction form
   8,211.33/12,320.06 = 4,926.78/x
3. Step 3: Cross multiply
   8,211.33x = 12,320.06 × 4,926.78
4. Step 4: Simplify right side
   8,211.33x = 60,698,200.57
5. Step 5: Solve for x
   x = 60,698,200.57/8,211.33
6. Step 6: Final answer
   x = 7,392.01