Finding the Fourth Proportional to 13,911.92, 19,198.42 and 7,624.29

Step by Step Solution

1. Step 1: Write the proportion equation
   13,911.92 : 19,198.42 = 7,624.29 : x
2. Step 2: Convert to fraction form
   13,911.92/19,198.42 = 7,624.29/x
3. Step 3: Cross multiply
   13,911.92x = 19,198.42 × 7,624.29
4. Step 4: Simplify right side
   13,911.92x = 146,374,321.62
5. Step 5: Solve for x
   x = 146,374,321.62/13,911.92
6. Step 6: Final answer
   x = 10,521.50