Finding the Fourth Proportional to 8,857.42, 13,281.81 and 5,057.62

Step by Step Solution

1. Step 1: Write the proportion equation
   8,857.42 : 13,281.81 = 5,057.62 : x
2. Step 2: Convert to fraction form
   8,857.42/13,281.81 = 5,057.62/x
3. Step 3: Cross multiply
   8,857.42x = 13,281.81 × 5,057.62
4. Step 4: Simplify right side
   8,857.42x = 67,174,347.89
5. Step 5: Solve for x
   x = 67,174,347.89/8,857.42
6. Step 6: Final answer
   x = 7,583.96