Finding the Fourth Proportional to 9,870.72, 14,806.14 and 3,948.10

Step by Step Solution

1. Step 1: Write the proportion equation
   9,870.72 : 14,806.14 = 3,948.10 : x
2. Step 2: Convert to fraction form
   9,870.72/14,806.14 = 3,948.10/x
3. Step 3: Cross multiply
   9,870.72x = 14,806.14 × 3,948.10
4. Step 4: Simplify right side
   9,870.72x = 58,456,154.65
5. Step 5: Solve for x
   x = 58,456,154.65/9,870.72
6. Step 6: Final answer
   x = 5,922.18