Finding the Fourth Proportional to 7,718.78, 10,651.90 and 4,182.00

Step by Step Solution

1. Step 1: Write the proportion equation
   7,718.78 : 10,651.90 = 4,182.00 : x
2. Step 2: Convert to fraction form
   7,718.78/10,651.90 = 4,182.00/x
3. Step 3: Cross multiply
   7,718.78x = 10,651.90 × 4,182.00
4. Step 4: Simplify right side
   7,718.78x = 44,546,191.48
5. Step 5: Solve for x
   x = 44,546,191.48/7,718.78
6. Step 6: Final answer
   x = 5,771.15