Finding the Fourth Proportional to 6,870.02, 10,304.21 and 3,071.12

Step by Step Solution

1. Step 1: Write the proportion equation
   6,870.02 : 10,304.21 = 3,071.12 : x
2. Step 2: Convert to fraction form
   6,870.02/10,304.21 = 3,071.12/x
3. Step 3: Cross multiply
   6,870.02x = 10,304.21 × 3,071.12
4. Step 4: Simplify right side
   6,870.02x = 31,645,421.57
5. Step 5: Solve for x
   x = 31,645,421.57/6,870.02
6. Step 6: Final answer
   x = 4,606.31