Finding the Fourth Proportional to 8,885.90, 12,260.82 and 5,349.34

Step by Step Solution

1. Step 1: Write the proportion equation
   8,885.90 : 12,260.82 = 5,349.34 : x
2. Step 2: Convert to fraction form
   8,885.90/12,260.82 = 5,349.34/x
3. Step 3: Cross multiply
   8,885.90x = 12,260.82 × 5,349.34
4. Step 4: Simplify right side
   8,885.90x = 65,587,300.15
5. Step 5: Solve for x
   x = 65,587,300.15/8,885.90
6. Step 6: Final answer
   x = 7,381.05