Finding the Fourth Proportional to 6,393.52, 8,814.18 and 4,972.78

Step by Step Solution

1. Step 1: Write the proportion equation
   6,393.52 : 8,814.18 = 4,972.78 : x
2. Step 2: Convert to fraction form
   6,393.52/8,814.18 = 4,972.78/x
3. Step 3: Cross multiply
   6,393.52x = 8,814.18 × 4,972.78
4. Step 4: Simplify right side
   6,393.52x = 43,830,978.02
5. Step 5: Solve for x
   x = 43,830,978.02/6,393.52
6. Step 6: Final answer
   x = 6,855.53