Finding the Fourth Proportional to 12,241.15, 16,892.51 and 7,137.61

Step by Step Solution

1. Step 1: Write the proportion equation
   12,241.15 : 16,892.51 = 7,137.61 : x
2. Step 2: Convert to fraction form
   12,241.15/16,892.51 = 7,137.61/x
3. Step 3: Cross multiply
   12,241.15x = 16,892.51 × 7,137.61
4. Step 4: Simplify right side
   12,241.15x = 120,572,148.30
5. Step 5: Solve for x
   x = 120,572,148.30/12,241.15
6. Step 6: Final answer
   x = 9,849.74