Finding the Fourth Proportional to 12,076.38, 16,650.09 and 7,820.37

Step by Step Solution

1. Step 1: Write the proportion equation
   12,076.38 : 16,650.09 = 7,820.37 : x
2. Step 2: Convert to fraction form
   12,076.38/16,650.09 = 7,820.37/x
3. Step 3: Cross multiply
   12,076.38x = 16,650.09 × 7,820.37
4. Step 4: Simplify right side
   12,076.38x = 130,209,864.33
5. Step 5: Solve for x
   x = 130,209,864.33/12,076.38
6. Step 6: Final answer
   x = 10,782.19