Finding the Fourth Proportional to 9,137.34, 12,608.46 and 5,158.22

Step by Step Solution

1. Step 1: Write the proportion equation
   9,137.34 : 12,608.46 = 5,158.22 : x
2. Step 2: Convert to fraction form
   9,137.34/12,608.46 = 5,158.22/x
3. Step 3: Cross multiply
   9,137.34x = 12,608.46 × 5,158.22
4. Step 4: Simplify right side
   9,137.34x = 65,037,147.50
5. Step 5: Solve for x
   x = 65,037,147.50/9,137.34
6. Step 6: Final answer
   x = 7,117.73