Finding the Fourth Proportional to 31,122, 42,948.36 and 19,944

Step by Step Solution

1. Step 1: Write the proportion equation
   31,122 : 42,948.36 = 19,944 : x
2. Step 2: Convert to fraction form
   31,122/42,948.36 = 19,944/x
3. Step 3: Cross multiply
   31,122x = 42,948.36 × 19,944
4. Step 4: Simplify right side
   31,122x = 856,562,091.84
5. Step 5: Solve for x
   x = 856,562,091.84/31,122
6. Step 6: Final answer
   x = 27,522.72