Finding the Fourth Proportional to 10,927.34, 16,390.88 and 3,136.12

Step by Step Solution

1. Step 1: Write the proportion equation
   10,927.34 : 16,390.88 = 3,136.12 : x
2. Step 2: Convert to fraction form
   10,927.34/16,390.88 = 3,136.12/x
3. Step 3: Cross multiply
   10,927.34x = 16,390.88 × 3,136.12
4. Step 4: Simplify right side
   10,927.34x = 51,403,766.59
5. Step 5: Solve for x
   x = 51,403,766.59/10,927.34
6. Step 6: Final answer
   x = 4,704.14