Finding the Fourth Proportional to 7,782.59, 10,740.02 and 4,245.72

Step by Step Solution

1. Step 1: Write the proportion equation
   7,782.59 : 10,740.02 = 4,245.72 : x
2. Step 2: Convert to fraction form
   7,782.59/10,740.02 = 4,245.72/x
3. Step 3: Cross multiply
   7,782.59x = 10,740.02 × 4,245.72
4. Step 4: Simplify right side
   7,782.59x = 45,599,096.49
5. Step 5: Solve for x
   x = 45,599,096.49/7,782.59
6. Step 6: Final answer
   x = 5,859.12