Finding the Fourth Proportional to 10,434.70, 15,654.39 and 3,861.10

Step by Step Solution

1. Step 1: Write the proportion equation
   10,434.70 : 15,654.39 = 3,861.10 : x
2. Step 2: Convert to fraction form
   10,434.70/15,654.39 = 3,861.10/x
3. Step 3: Cross multiply
   10,434.70x = 15,654.39 × 3,861.10
4. Step 4: Simplify right side
   10,434.70x = 60,443,165.23
5. Step 5: Solve for x
   x = 60,443,165.23/10,434.70
6. Step 6: Final answer
   x = 5,792.52