Finding the Fourth Proportional to 10,215.59, 14,096.70 and 5,739.18

Step by Step Solution

1. Step 1: Write the proportion equation
   10,215.59 : 14,096.70 = 5,739.18 : x
2. Step 2: Convert to fraction form
   10,215.59/14,096.70 = 5,739.18/x
3. Step 3: Cross multiply
   10,215.59x = 14,096.70 × 5,739.18
4. Step 4: Simplify right side
   10,215.59x = 80,903,498.71
5. Step 5: Solve for x
   x = 80,903,498.71/10,215.59
6. Step 6: Final answer
   x = 7,919.61