Finding the Fourth Proportional to 13,910.82, 19,196.94 and 7,623.20

Step by Step Solution

1. Step 1: Write the proportion equation
   13,910.82 : 19,196.94 = 7,623.20 : x
2. Step 2: Convert to fraction form
   13,910.82/19,196.94 = 7,623.20/x
3. Step 3: Cross multiply
   13,910.82x = 19,196.94 × 7,623.20
4. Step 4: Simplify right side
   13,910.82x = 146,342,113.01
5. Step 5: Solve for x
   x = 146,342,113.01/13,910.82
6. Step 6: Final answer
   x = 10,520.02