Finding the Fourth Proportional to 9,929.37, 14,900.21 and 5,771.33

Step by Step Solution

1. Step 1: Write the proportion equation
   9,929.37 : 14,900.21 = 5,771.33 : x
2. Step 2: Convert to fraction form
   9,929.37/14,900.21 = 5,771.33/x
3. Step 3: Cross multiply
   9,929.37x = 14,900.21 × 5,771.33
4. Step 4: Simplify right side
   9,929.37x = 85,994,037.37
5. Step 5: Solve for x
   x = 85,994,037.37/9,929.37
6. Step 6: Final answer
   x = 8,660.57