Finding the Fourth Proportional to 10,256.70, 14,154.92 and 5,719.89

Step by Step Solution

1. Step 1: Write the proportion equation
   10,256.70 : 14,154.92 = 5,719.89 : x
2. Step 2: Convert to fraction form
   10,256.70/14,154.92 = 5,719.89/x
3. Step 3: Cross multiply
   10,256.70x = 14,154.92 × 5,719.89
4. Step 4: Simplify right side
   10,256.70x = 80,964,585.36
5. Step 5: Solve for x
   x = 80,964,585.36/10,256.70
6. Step 6: Final answer
   x = 7,893.82