Finding the Fourth Proportional to 10,927.98, 16,391.91 and 3,136.77

Step by Step Solution

1. Step 1: Write the proportion equation
   10,927.98 : 16,391.91 = 3,136.77 : x
2. Step 2: Convert to fraction form
   10,927.98/16,391.91 = 3,136.77/x
3. Step 3: Cross multiply
   10,927.98x = 16,391.91 × 3,136.77
4. Step 4: Simplify right side
   10,927.98x = 51,417,651.53
5. Step 5: Solve for x
   x = 51,417,651.53/10,927.98
6. Step 6: Final answer
   x = 4,705.14