Finding the Fourth Proportional to 16,162.02, 22,296.72 and 9,870.78

Step by Step Solution

1. Step 1: Write the proportion equation
   16,162.02 : 22,296.72 = 9,870.78 : x
2. Step 2: Convert to fraction form
   16,162.02/22,296.72 = 9,870.78/x
3. Step 3: Cross multiply
   16,162.02x = 22,296.72 × 9,870.78
4. Step 4: Simplify right side
   16,162.02x = 220,086,017.84
5. Step 5: Solve for x
   x = 220,086,017.84/16,162.02
6. Step 6: Final answer
   x = 13,617.48