Finding the Fourth Proportional to 6,656.31, 9,179.73 and 5,540.94

Step by Step Solution

1. Step 1: Write the proportion equation
   6,656.31 : 9,179.73 = 5,540.94 : x
2. Step 2: Convert to fraction form
   6,656.31/9,179.73 = 5,540.94/x
3. Step 3: Cross multiply
   6,656.31x = 9,179.73 × 5,540.94
4. Step 4: Simplify right side
   6,656.31x = 50,864,333.15
5. Step 5: Solve for x
   x = 50,864,333.15/6,656.31
6. Step 6: Final answer
   x = 7,641.52