Finding the Fourth Proportional to 21,962.86, 30,322.71 and 14,422.57

Step by Step Solution

1. Step 1: Write the proportion equation
   21,962.86 : 30,322.71 = 14,422.57 : x
2. Step 2: Convert to fraction form
   21,962.86/30,322.71 = 14,422.57/x
3. Step 3: Cross multiply
   21,962.86x = 30,322.71 × 14,422.57
4. Step 4: Simplify right side
   21,962.86x = 437,331,407.56
5. Step 5: Solve for x
   x = 437,331,407.56/21,962.86
6. Step 6: Final answer
   x = 19,912.32