Finding the Fourth Proportional to 31,422.20, 43,343.34 and 22,454.22

Step by Step Solution

1. Step 1: Write the proportion equation
   31,422.20 : 43,343.34 = 22,454.22 : x
2. Step 2: Convert to fraction form
   31,422.20/43,343.34 = 22,454.22/x
3. Step 3: Cross multiply
   31,422.20x = 43,343.34 × 22,454.22
4. Step 4: Simplify right side
   31,422.20x = 973,240,891.89
5. Step 5: Solve for x
   x = 973,240,891.89/31,422.20
6. Step 6: Final answer
   x = 30,973.03