Finding the Fourth Proportional to 16,530.25, 22,812.29 and 9,078.25

Step by Step Solution

1. Step 1: Write the proportion equation
   16,530.25 : 22,812.29 = 9,078.25 : x
2. Step 2: Convert to fraction form
   16,530.25/22,812.29 = 9,078.25/x
3. Step 3: Cross multiply
   16,530.25x = 22,812.29 × 9,078.25
4. Step 4: Simplify right side
   16,530.25x = 207,095,671.69
5. Step 5: Solve for x
   x = 207,095,671.69/16,530.25
6. Step 6: Final answer
   x = 12,528.28