Finding the Fourth Proportional to 21,907.98, 32,881.50 and 10,227.78

Step by Step Solution

1. Step 1: Write the proportion equation
   21,907.98 : 32,881.50 = 10,227.78 : x
2. Step 2: Convert to fraction form
   21,907.98/32,881.50 = 10,227.78/x
3. Step 3: Cross multiply
   21,907.98x = 32,881.50 × 10,227.78
4. Step 4: Simplify right side
   21,907.98x = 336,304,748.07
5. Step 5: Solve for x
   x = 336,304,748.07/21,907.98
6. Step 6: Final answer
   x = 15,350.79