Finding the Fourth Proportional to 10,247.81, 14,139.55 and 5,770.67

Step by Step Solution

1. Step 1: Write the proportion equation
   10,247.81 : 14,139.55 = 5,770.67 : x
2. Step 2: Convert to fraction form
   10,247.81/14,139.55 = 5,770.67/x
3. Step 3: Cross multiply
   10,247.81x = 14,139.55 × 5,770.67
4. Step 4: Simplify right side
   10,247.81x = 81,594,719.56
5. Step 5: Solve for x
   x = 81,594,719.56/10,247.81
6. Step 6: Final answer
   x = 7,962.16