Finding the Fourth Proportional to 9,856.88, 14,789.74 and 5,355.32

Step by Step Solution

1. Step 1: Write the proportion equation
   9,856.88 : 14,789.74 = 5,355.32 : x
2. Step 2: Convert to fraction form
   9,856.88/14,789.74 = 5,355.32/x
3. Step 3: Cross multiply
   9,856.88x = 14,789.74 × 5,355.32
4. Step 4: Simplify right side
   9,856.88x = 79,203,790.42
5. Step 5: Solve for x
   x = 79,203,790.42/9,856.88
6. Step 6: Final answer
   x = 8,035.38