Finding the Fourth Proportional to 12,850.48, 19,231.89 and 10,772.83

Step by Step Solution

1. Step 1: Write the proportion equation
   12,850.48 : 19,231.89 = 10,772.83 : x
2. Step 2: Convert to fraction form
   12,850.48/19,231.89 = 10,772.83/x
3. Step 3: Cross multiply
   12,850.48x = 19,231.89 × 10,772.83
4. Step 4: Simplify right side
   12,850.48x = 207,181,881.55
5. Step 5: Solve for x
   x = 207,181,881.55/12,850.48
6. Step 6: Final answer
   x = 16,122.50