Finding the Fourth Proportional to 22,892.93, 31,592.94 and 12,821.33

Step by Step Solution

1. Step 1: Write the proportion equation
   22,892.93 : 31,592.94 = 12,821.33 : x
2. Step 2: Convert to fraction form
   22,892.93/31,592.94 = 12,821.33/x
3. Step 3: Cross multiply
   22,892.93x = 31,592.94 × 12,821.33
4. Step 4: Simplify right side
   22,892.93x = 405,063,509.41
5. Step 5: Solve for x
   x = 405,063,509.41/22,892.93
6. Step 6: Final answer
   x = 17,693.83