Finding the Fourth Proportional to 12,086.94, 18,134.04 and 9,997.50

Step by Step Solution

1. Step 1: Write the proportion equation
   12,086.94 : 18,134.04 = 9,997.50 : x
2. Step 2: Convert to fraction form
   12,086.94/18,134.04 = 9,997.50/x
3. Step 3: Cross multiply
   12,086.94x = 18,134.04 × 9,997.50
4. Step 4: Simplify right side
   12,086.94x = 181,295,064.90
5. Step 5: Solve for x
   x = 181,295,064.90/12,086.94
6. Step 6: Final answer
   x = 14,999.25