Finding the Fourth Proportional to 10,722.65, 16,082.00 and 2,931.39

Step by Step Solution

1. Step 1: Write the proportion equation
   10,722.65 : 16,082.00 = 2,931.39 : x
2. Step 2: Convert to fraction form
   10,722.65/16,082.00 = 2,931.39/x
3. Step 3: Cross multiply
   10,722.65x = 16,082.00 × 2,931.39
4. Step 4: Simplify right side
   10,722.65x = 47,142,599.32
5. Step 5: Solve for x
   x = 47,142,599.32/10,722.65
6. Step 6: Final answer
   x = 4,396.55