Finding the Fourth Proportional to 6,921.56, 9,546.72 and 4,401.38

Step by Step Solution

1. Step 1: Write the proportion equation
   6,921.56 : 9,546.72 = 4,401.38 : x
2. Step 2: Convert to fraction form
   6,921.56/9,546.72 = 4,401.38/x
3. Step 3: Cross multiply
   6,921.56x = 9,546.72 × 4,401.38
4. Step 4: Simplify right side
   6,921.56x = 42,018,742.47
5. Step 5: Solve for x
   x = 42,018,742.47/6,921.56
6. Step 6: Final answer
   x = 6,070.70