Finding the Fourth Proportional to 22,892.73, 31,593.42 and 12,820.79

Step by Step Solution

1. Step 1: Write the proportion equation
   22,892.73 : 31,593.42 = 12,820.79 : x
2. Step 2: Convert to fraction form
   22,892.73/31,593.42 = 12,820.79/x
3. Step 3: Cross multiply
   22,892.73x = 31,593.42 × 12,820.79
4. Step 4: Simplify right side
   22,892.73x = 405,052,445.23
5. Step 5: Solve for x
   x = 405,052,445.23/22,892.73
6. Step 6: Final answer
   x = 17,693.50