Finding the Fourth Proportional to 31,809.31, 43,897.35 and 17,662.30

Step by Step Solution

1. Step 1: Write the proportion equation
   31,809.31 : 43,897.35 = 17,662.30 : x
2. Step 2: Convert to fraction form
   31,809.31/43,897.35 = 17,662.30/x
3. Step 3: Cross multiply
   31,809.31x = 43,897.35 × 17,662.30
4. Step 4: Simplify right side
   31,809.31x = 775,328,164.91
5. Step 5: Solve for x
   x = 775,328,164.91/31,809.31
6. Step 6: Final answer
   x = 24,374.25