Finding the Fourth Proportional to 13,191.97, 19,792.01 and 5,401.39

Step by Step Solution

1. Step 1: Write the proportion equation
   13,191.97 : 19,792.01 = 5,401.39 : x
2. Step 2: Convert to fraction form
   13,191.97/19,792.01 = 5,401.39/x
3. Step 3: Cross multiply
   13,191.97x = 19,792.01 × 5,401.39
4. Step 4: Simplify right side
   13,191.97x = 106,904,364.89
5. Step 5: Solve for x
   x = 106,904,364.89/13,191.97
6. Step 6: Final answer
   x = 8,103.75