Finding the Fourth Proportional to 8,208.72, 12,316.86 and 5,092.38

Step by Step Solution

1. Step 1: Write the proportion equation
   8,208.72 : 12,316.86 = 5,092.38 : x
2. Step 2: Convert to fraction form
   8,208.72/12,316.86 = 5,092.38/x
3. Step 3: Cross multiply
   8,208.72x = 12,316.86 × 5,092.38
4. Step 4: Simplify right side
   8,208.72x = 62,722,131.53
5. Step 5: Solve for x
   x = 62,722,131.53/8,208.72
6. Step 6: Final answer
   x = 7,640.91