Finding the Fourth Proportional to 10,231.56, 15,347.52 and 3,659.40

Step by Step Solution

1. Step 1: Write the proportion equation
   10,231.56 : 15,347.52 = 3,659.40 : x
2. Step 2: Convert to fraction form
   10,231.56/15,347.52 = 3,659.40/x
3. Step 3: Cross multiply
   10,231.56x = 15,347.52 × 3,659.40
4. Step 4: Simplify right side
   10,231.56x = 56,162,714.69
5. Step 5: Solve for x
   x = 56,162,714.69/10,231.56
6. Step 6: Final answer
   x = 5,489.16