Finding the Fourth Proportional to 7,816.47, 10,786.59 and 4,279.56

Step by Step Solution

1. Step 1: Write the proportion equation
   7,816.47 : 10,786.59 = 4,279.56 : x
2. Step 2: Convert to fraction form
   7,816.47/10,786.59 = 4,279.56/x
3. Step 3: Cross multiply
   7,816.47x = 10,786.59 × 4,279.56
4. Step 4: Simplify right side
   7,816.47x = 46,161,859.10
5. Step 5: Solve for x
   x = 46,161,859.10/7,816.47
6. Step 6: Final answer
   x = 5,905.72