Finding the Fourth Proportional to 8,081.91, 11,153.06 and 4,724.12

Step by Step Solution

1. Step 1: Write the proportion equation
   8,081.91 : 11,153.06 = 4,724.12 : x
2. Step 2: Convert to fraction form
   8,081.91/11,153.06 = 4,724.12/x
3. Step 3: Cross multiply
   8,081.91x = 11,153.06 × 4,724.12
4. Step 4: Simplify right side
   8,081.91x = 52,688,314.42
5. Step 5: Solve for x
   x = 52,688,314.42/8,081.91
6. Step 6: Final answer
   x = 6,519.29