Finding the Fourth Proportional to 6,573.82, 9,071.85 and 3,921.34

Step by Step Solution

1. Step 1: Write the proportion equation
   6,573.82 : 9,071.85 = 3,921.34 : x
2. Step 2: Convert to fraction form
   6,573.82/9,071.85 = 3,921.34/x
3. Step 3: Cross multiply
   6,573.82x = 9,071.85 × 3,921.34
4. Step 4: Simplify right side
   6,573.82x = 35,573,808.28
5. Step 5: Solve for x
   x = 35,573,808.28/6,573.82
6. Step 6: Final answer
   x = 5,411.44