Finding the Fourth Proportional to 9,676.85, 13,353.90 and 5,427.91

Step by Step Solution

1. Step 1: Write the proportion equation
   9,676.85 : 13,353.90 = 5,427.91 : x
2. Step 2: Convert to fraction form
   9,676.85/13,353.90 = 5,427.91/x
3. Step 3: Cross multiply
   9,676.85x = 13,353.90 × 5,427.91
4. Step 4: Simplify right side
   9,676.85x = 72,483,767.35
5. Step 5: Solve for x
   x = 72,483,767.35/9,676.85
6. Step 6: Final answer
   x = 7,490.43