Finding the Fourth Proportional to 6,942.16, 9,580.17 and 3,917.08

Step by Step Solution

1. Step 1: Write the proportion equation
   6,942.16 : 9,580.17 = 3,917.08 : x
2. Step 2: Convert to fraction form
   6,942.16/9,580.17 = 3,917.08/x
3. Step 3: Cross multiply
   6,942.16x = 9,580.17 × 3,917.08
4. Step 4: Simplify right side
   6,942.16x = 37,526,292.30
5. Step 5: Solve for x
   x = 37,526,292.30/6,942.16
6. Step 6: Final answer
   x = 5,405.56