Finding the Fourth Proportional to 6,601.04, 9,894.18 and 3,131

Step by Step Solution

1. Step 1: Write the proportion equation
   6,601.04 : 9,894.18 = 3,131 : x
2. Step 2: Convert to fraction form
   6,601.04/9,894.18 = 3,131/x
3. Step 3: Cross multiply
   6,601.04x = 9,894.18 × 3,131
4. Step 4: Simplify right side
   6,601.04x = 30,978,677.58
5. Step 5: Solve for x
   x = 30,978,677.58/6,601.04
6. Step 6: Final answer
   x = 4,693.00