Finding the Fourth Proportional to 31,119.54, 42,883.58 and 22,141.90

Step by Step Solution

1. Step 1: Write the proportion equation
   31,119.54 : 42,883.58 = 22,141.90 : x
2. Step 2: Convert to fraction form
   31,119.54/42,883.58 = 22,141.90/x
3. Step 3: Cross multiply
   31,119.54x = 42,883.58 × 22,141.90
4. Step 4: Simplify right side
   31,119.54x = 949,523,940.00
5. Step 5: Solve for x
   x = 949,523,940.00/31,119.54
6. Step 6: Final answer
   x = 30,512.15