Finding the Fourth Proportional to 9,820.78, 14,727.83 and 3,579.32

Step by Step Solution

1. Step 1: Write the proportion equation
   9,820.78 : 14,727.83 = 3,579.32 : x
2. Step 2: Convert to fraction form
   9,820.78/14,727.83 = 3,579.32/x
3. Step 3: Cross multiply
   9,820.78x = 14,727.83 × 3,579.32
4. Step 4: Simplify right side
   9,820.78x = 52,715,635.40
5. Step 5: Solve for x
   x = 52,715,635.40/9,820.78
6. Step 6: Final answer
   x = 5,367.77