Finding the Fourth Proportional to 8,116.34, 11,200.55 and 4,390.34

Step by Step Solution

1. Step 1: Write the proportion equation
   8,116.34 : 11,200.55 = 4,390.34 : x
2. Step 2: Convert to fraction form
   8,116.34/11,200.55 = 4,390.34/x
3. Step 3: Cross multiply
   8,116.34x = 11,200.55 × 4,390.34
4. Step 4: Simplify right side
   8,116.34x = 49,174,222.69
5. Step 5: Solve for x
   x = 49,174,222.69/8,116.34
6. Step 6: Final answer
   x = 6,058.67