Finding the Fourth Proportional to 10,311.76, 15,475.83 and 3,739.83

Step by Step Solution

1. Step 1: Write the proportion equation
   10,311.76 : 15,475.83 = 3,739.83 : x
2. Step 2: Convert to fraction form
   10,311.76/15,475.83 = 3,739.83/x
3. Step 3: Cross multiply
   10,311.76x = 15,475.83 × 3,739.83
4. Step 4: Simplify right side
   10,311.76x = 57,876,973.31
5. Step 5: Solve for x
   x = 57,876,973.31/10,311.76
6. Step 6: Final answer
   x = 5,612.72