Finding the Fourth Proportional to 12,131.29, 18,198.32 and 5,110.01

Step by Step Solution

1. Step 1: Write the proportion equation
   12,131.29 : 18,198.32 = 5,110.01 : x
2. Step 2: Convert to fraction form
   12,131.29/18,198.32 = 5,110.01/x
3. Step 3: Cross multiply
   12,131.29x = 18,198.32 × 5,110.01
4. Step 4: Simplify right side
   12,131.29x = 92,993,628.81
5. Step 5: Solve for x
   x = 92,993,628.81/12,131.29
6. Step 6: Final answer
   x = 7,665.60