Finding the Fourth Proportional to 8,411.05, 12,618.55 and 4,715.83

Step by Step Solution

1. Step 1: Write the proportion equation
   8,411.05 : 12,618.55 = 4,715.83 : x
2. Step 2: Convert to fraction form
   8,411.05/12,618.55 = 4,715.83/x
3. Step 3: Cross multiply
   8,411.05x = 12,618.55 × 4,715.83
4. Step 4: Simplify right side
   8,411.05x = 59,506,958.31
5. Step 5: Solve for x
   x = 59,506,958.31/8,411.05
6. Step 6: Final answer
   x = 7,074.85