Finding the Fourth Proportional to 21,833.28, 30,129.96 and 12,401.82

Step by Step Solution

1. Step 1: Write the proportion equation
   21,833.28 : 30,129.96 = 12,401.82 : x
2. Step 2: Convert to fraction form
   21,833.28/30,129.96 = 12,401.82/x
3. Step 3: Cross multiply
   21,833.28x = 30,129.96 × 12,401.82
4. Step 4: Simplify right side
   21,833.28x = 373,666,340.53
5. Step 5: Solve for x
   x = 373,666,340.53/21,833.28
6. Step 6: Final answer
   x = 17,114.53