Finding the Fourth Proportional to 31,398.84, 43,285.59 and 22,443.08

Step by Step Solution

1. Step 1: Write the proportion equation
   31,398.84 : 43,285.59 = 22,443.08 : x
2. Step 2: Convert to fraction form
   31,398.84/43,285.59 = 22,443.08/x
3. Step 3: Cross multiply
   31,398.84x = 43,285.59 × 22,443.08
4. Step 4: Simplify right side
   31,398.84x = 971,461,742.79
5. Step 5: Solve for x
   x = 971,461,742.79/31,398.84
6. Step 6: Final answer
   x = 30,939.42