Finding the Fourth Proportional to 31,796.84, 43,873.56 and 18,189.20

Step by Step Solution

1. Step 1: Write the proportion equation
   31,796.84 : 43,873.56 = 18,189.20 : x
2. Step 2: Convert to fraction form
   31,796.84/43,873.56 = 18,189.20/x
3. Step 3: Cross multiply
   31,796.84x = 43,873.56 × 18,189.20
4. Step 4: Simplify right side
   31,796.84x = 798,024,957.55
5. Step 5: Solve for x
   x = 798,024,957.55/31,796.84
6. Step 6: Final answer
   x = 25,097.62