Finding the Fourth Proportional to 12,822.47, 19,268.34 and 12,100.76

Step by Step Solution

1. Step 1: Write the proportion equation
   12,822.47 : 19,268.34 = 12,100.76 : x
2. Step 2: Convert to fraction form
   12,822.47/19,268.34 = 12,100.76/x
3. Step 3: Cross multiply
   12,822.47x = 19,268.34 × 12,100.76
4. Step 4: Simplify right side
   12,822.47x = 233,161,557.94
5. Step 5: Solve for x
   x = 233,161,557.94/12,822.47
6. Step 6: Final answer
   x = 18,183.83