Finding the Fourth Proportional to 9,137.30, 12,612.15 and 5,361.27

Step by Step Solution

1. Step 1: Write the proportion equation
   9,137.30 : 12,612.15 = 5,361.27 : x
2. Step 2: Convert to fraction form
   9,137.30/12,612.15 = 5,361.27/x
3. Step 3: Cross multiply
   9,137.30x = 12,612.15 × 5,361.27
4. Step 4: Simplify right side
   9,137.30x = 67,617,141.43
5. Step 5: Solve for x
   x = 67,617,141.43/9,137.30
6. Step 6: Final answer
   x = 7,400.13