Finding the Fourth Proportional to 8,211.12, 12,316.05 and 3,016.50

Step by Step Solution

1. Step 1: Write the proportion equation
   8,211.12 : 12,316.05 = 3,016.50 : x
2. Step 2: Convert to fraction form
   8,211.12/12,316.05 = 3,016.50/x
3. Step 3: Cross multiply
   8,211.12x = 12,316.05 × 3,016.50
4. Step 4: Simplify right side
   8,211.12x = 37,151,364.83
5. Step 5: Solve for x
   x = 37,151,364.83/8,211.12
6. Step 6: Final answer
   x = 4,524.52