Finding the Fourth Proportional to 12,175.59, 18,249.55 and 5,151.23

Step by Step Solution

1. Step 1: Write the proportion equation
   12,175.59 : 18,249.55 = 5,151.23 : x
2. Step 2: Convert to fraction form
   12,175.59/18,249.55 = 5,151.23/x
3. Step 3: Cross multiply
   12,175.59x = 18,249.55 × 5,151.23
4. Step 4: Simplify right side
   12,175.59x = 94,007,593.76
5. Step 5: Solve for x
   x = 94,007,593.76/12,175.59
6. Step 6: Final answer
   x = 7,720.99