Finding the Fourth Proportional to 10,722.36, 16,083.03 and 2,931.15

Step by Step Solution

1. Step 1: Write the proportion equation
   10,722.36 : 16,083.03 = 2,931.15 : x
2. Step 2: Convert to fraction form
   10,722.36/16,083.03 = 2,931.15/x
3. Step 3: Cross multiply
   10,722.36x = 16,083.03 × 2,931.15
4. Step 4: Simplify right side
   10,722.36x = 47,141,773.38
5. Step 5: Solve for x
   x = 47,141,773.38/10,722.36
6. Step 6: Final answer
   x = 4,396.59