Finding the Fourth Proportional to 10,311.39, 15,461.55 and 4,071.15

Step by Step Solution

1. Step 1: Write the proportion equation
   10,311.39 : 15,461.55 = 4,071.15 : x
2. Step 2: Convert to fraction form
   10,311.39/15,461.55 = 4,071.15/x
3. Step 3: Cross multiply
   10,311.39x = 15,461.55 × 4,071.15
4. Step 4: Simplify right side
   10,311.39x = 62,946,289.28
5. Step 5: Solve for x
   x = 62,946,289.28/10,311.39
6. Step 6: Final answer
   x = 6,104.54