Finding the Fourth Proportional to 21,833.88, 30,130.58 and 12,402.24

Step by Step Solution

1. Step 1: Write the proportion equation
   21,833.88 : 30,130.58 = 12,402.24 : x
2. Step 2: Convert to fraction form
   21,833.88/30,130.58 = 12,402.24/x
3. Step 3: Cross multiply
   21,833.88x = 30,130.58 × 12,402.24
4. Step 4: Simplify right side
   21,833.88x = 373,686,684.50
5. Step 5: Solve for x
   x = 373,686,684.50/21,833.88
6. Step 6: Final answer
   x = 17,114.99