Finding the Fourth Proportional to 10,131.69, 15,168.51 and 6,625.62

Step by Step Solution

1. Step 1: Write the proportion equation
   10,131.69 : 15,168.51 = 6,625.62 : x
2. Step 2: Convert to fraction form
   10,131.69/15,168.51 = 6,625.62/x
3. Step 3: Cross multiply
   10,131.69x = 15,168.51 × 6,625.62
4. Step 4: Simplify right side
   10,131.69x = 100,500,783.23
5. Step 5: Solve for x
   x = 100,500,783.23/10,131.69
6. Step 6: Final answer
   x = 9,919.45