Finding the Fourth Proportional to 8,856.42, 13,280.31 and 5,056.62

Step by Step Solution

1. Step 1: Write the proportion equation
   8,856.42 : 13,280.31 = 5,056.62 : x
2. Step 2: Convert to fraction form
   8,856.42/13,280.31 = 5,056.62/x
3. Step 3: Cross multiply
   8,856.42x = 13,280.31 × 5,056.62
4. Step 4: Simplify right side
   8,856.42x = 67,153,481.15
5. Step 5: Solve for x
   x = 67,153,481.15/8,856.42
6. Step 6: Final answer
   x = 7,582.46