Finding the Fourth Proportional to 5,401.25, 8,105.52 and 2,113.93

Step by Step Solution

1. Step 1: Write the proportion equation
   5,401.25 : 8,105.52 = 2,113.93 : x
2. Step 2: Convert to fraction form
   5,401.25/8,105.52 = 2,113.93/x
3. Step 3: Cross multiply
   5,401.25x = 8,105.52 × 2,113.93
4. Step 4: Simplify right side
   5,401.25x = 17,134,501.89
5. Step 5: Solve for x
   x = 17,134,501.89/5,401.25
6. Step 6: Final answer
   x = 3,172.32