Finding the Fourth Proportional to 31,841.28, 43,956.48 and 21,822.72

Step by Step Solution

1. Step 1: Write the proportion equation
   31,841.28 : 43,956.48 = 21,822.72 : x
2. Step 2: Convert to fraction form
   31,841.28/43,956.48 = 21,822.72/x
3. Step 3: Cross multiply
   31,841.28x = 43,956.48 × 21,822.72
4. Step 4: Simplify right side
   31,841.28x = 959,249,955.23
5. Step 5: Solve for x
   x = 959,249,955.23/31,841.28
6. Step 6: Final answer
   x = 30,125.99