Finding the Fourth Proportional to 6,931.86, 9,566.52 and 3,948.62

Step by Step Solution

1. Step 1: Write the proportion equation
   6,931.86 : 9,566.52 = 3,948.62 : x
2. Step 2: Convert to fraction form
   6,931.86/9,566.52 = 3,948.62/x
3. Step 3: Cross multiply
   6,931.86x = 9,566.52 × 3,948.62
4. Step 4: Simplify right side
   6,931.86x = 37,774,552.20
5. Step 5: Solve for x
   x = 37,774,552.20/6,931.86
6. Step 6: Final answer
   x = 5,449.41