Finding the Fourth Proportional to 21,895.32, 30,337.59 and 21,422.38

Step by Step Solution

1. Step 1: Write the proportion equation
   21,895.32 : 30,337.59 = 21,422.38 : x
2. Step 2: Convert to fraction form
   21,895.32/30,337.59 = 21,422.38/x
3. Step 3: Cross multiply
   21,895.32x = 30,337.59 × 21,422.38
4. Step 4: Simplify right side
   21,895.32x = 649,903,381.26
5. Step 5: Solve for x
   x = 649,903,381.26/21,895.32
6. Step 6: Final answer
   x = 29,682.30