Finding the Fourth Proportional to 8,713.98, 13,073.00 and 2,870.64

Step by Step Solution

1. Step 1: Write the proportion equation
   8,713.98 : 13,073.00 = 2,870.64 : x
2. Step 2: Convert to fraction form
   8,713.98/13,073.00 = 2,870.64/x
3. Step 3: Cross multiply
   8,713.98x = 13,073.00 × 2,870.64
4. Step 4: Simplify right side
   8,713.98x = 37,527,862.37
5. Step 5: Solve for x
   x = 37,527,862.37/8,713.98
6. Step 6: Final answer
   x = 4,306.63