Finding the Fourth Proportional to 8,870.30, 13,304.31 and 2,630.16

Step by Step Solution

1. Step 1: Write the proportion equation
   8,870.30 : 13,304.31 = 2,630.16 : x
2. Step 2: Convert to fraction form
   8,870.30/13,304.31 = 2,630.16/x
3. Step 3: Cross multiply
   8,870.30x = 13,304.31 × 2,630.16
4. Step 4: Simplify right side
   8,870.30x = 34,992,463.99
5. Step 5: Solve for x
   x = 34,992,463.99/8,870.30
6. Step 6: Final answer
   x = 3,944.90