Finding the Fourth Proportional to 13,900, 19,182.18 and 7,612.24

Step by Step Solution

1. Step 1: Write the proportion equation
   13,900 : 19,182.18 = 7,612.24 : x
2. Step 2: Convert to fraction form
   13,900/19,182.18 = 7,612.24/x
3. Step 3: Cross multiply
   13,900x = 19,182.18 × 7,612.24
4. Step 4: Simplify right side
   13,900x = 146,019,357.88
5. Step 5: Solve for x
   x = 146,019,357.88/13,900
6. Step 6: Final answer
   x = 10,504.99