Finding the Fourth Proportional to 22,443.90, 30,985.47 and 14,900.42

Step by Step Solution

1. Step 1: Write the proportion equation
   22,443.90 : 30,985.47 = 14,900.42 : x
2. Step 2: Convert to fraction form
   22,443.90/30,985.47 = 14,900.42/x
3. Step 3: Cross multiply
   22,443.90x = 30,985.47 × 14,900.42
4. Step 4: Simplify right side
   22,443.90x = 461,696,361.97
5. Step 5: Solve for x
   x = 461,696,361.97/22,443.90
6. Step 6: Final answer
   x = 20,571.13