Finding the Fourth Proportional to 13,941.72, 20,910.96 and 5,175.63

Step by Step Solution

1. Step 1: Write the proportion equation
   13,941.72 : 20,910.96 = 5,175.63 : x
2. Step 2: Convert to fraction form
   13,941.72/20,910.96 = 5,175.63/x
3. Step 3: Cross multiply
   13,941.72x = 20,910.96 × 5,175.63
4. Step 4: Simplify right side
   13,941.72x = 108,227,391.90
5. Step 5: Solve for x
   x = 108,227,391.90/13,941.72
6. Step 6: Final answer
   x = 7,762.84