Finding the Fourth Proportional to 9,885.02, 14,828.57 and 3,222.05

Step by Step Solution

1. Step 1: Write the proportion equation
   9,885.02 : 14,828.57 = 3,222.05 : x
2. Step 2: Convert to fraction form
   9,885.02/14,828.57 = 3,222.05/x
3. Step 3: Cross multiply
   9,885.02x = 14,828.57 × 3,222.05
4. Step 4: Simplify right side
   9,885.02x = 47,778,303.72
5. Step 5: Solve for x
   x = 47,778,303.72/9,885.02
6. Step 6: Final answer
   x = 4,833.41