Finding the Fourth Proportional to 16,131.84, 22,233.60 and 15,682.56

Step by Step Solution

1. Step 1: Write the proportion equation
   16,131.84 : 22,233.60 = 15,682.56 : x
2. Step 2: Convert to fraction form
   16,131.84/22,233.60 = 15,682.56/x
3. Step 3: Cross multiply
   16,131.84x = 22,233.60 × 15,682.56
4. Step 4: Simplify right side
   16,131.84x = 348,679,766.02
5. Step 5: Solve for x
   x = 348,679,766.02/16,131.84
6. Step 6: Final answer
   x = 21,614.38