Finding the Fourth Proportional to 21,384.59, 32,069.59 and 10,850.55

Step by Step Solution

1. Step 1: Write the proportion equation
   21,384.59 : 32,069.59 = 10,850.55 : x
2. Step 2: Convert to fraction form
   21,384.59/32,069.59 = 10,850.55/x
3. Step 3: Cross multiply
   21,384.59x = 32,069.59 × 10,850.55
4. Step 4: Simplify right side
   21,384.59x = 347,972,635.52
5. Step 5: Solve for x
   x = 347,972,635.52/21,384.59
6. Step 6: Final answer
   x = 16,272.12