Finding the Fourth Proportional to 9,137.09, 12,611.81 and 5,360.42

Step by Step Solution

1. Step 1: Write the proportion equation
   9,137.09 : 12,611.81 = 5,360.42 : x
2. Step 2: Convert to fraction form
   9,137.09/12,611.81 = 5,360.42/x
3. Step 3: Cross multiply
   9,137.09x = 12,611.81 × 5,360.42
4. Step 4: Simplify right side
   9,137.09x = 67,604,598.56
5. Step 5: Solve for x
   x = 67,604,598.56/9,137.09
6. Step 6: Final answer
   x = 7,398.92