Finding the Fourth Proportional to 9,377.26, 12,940.27 and 5,185.58

Step by Step Solution

1. Step 1: Write the proportion equation
   9,377.26 : 12,940.27 = 5,185.58 : x
2. Step 2: Convert to fraction form
   9,377.26/12,940.27 = 5,185.58/x
3. Step 3: Cross multiply
   9,377.26x = 12,940.27 × 5,185.58
4. Step 4: Simplify right side
   9,377.26x = 67,102,805.31
5. Step 5: Solve for x
   x = 67,102,805.31/9,377.26
6. Step 6: Final answer
   x = 7,155.91