Finding the Fourth Proportional to 7,401.30, 10,213.71 and 4,170.81

Step by Step Solution

1. Step 1: Write the proportion equation
   7,401.30 : 10,213.71 = 4,170.81 : x
2. Step 2: Convert to fraction form
   7,401.30/10,213.71 = 4,170.81/x
3. Step 3: Cross multiply
   7,401.30x = 10,213.71 × 4,170.81
4. Step 4: Simplify right side
   7,401.30x = 42,599,469.34
5. Step 5: Solve for x
   x = 42,599,469.34/7,401.30
6. Step 6: Final answer
   x = 5,755.68