Finding the Fourth Proportional to 31,401, 43,338.96 and 17,972.82

Step by Step Solution

1. Step 1: Write the proportion equation
   31,401 : 43,338.96 = 17,972.82 : x
2. Step 2: Convert to fraction form
   31,401/43,338.96 = 17,972.82/x
3. Step 3: Cross multiply
   31,401x = 43,338.96 × 17,972.82
4. Step 4: Simplify right side
   31,401x = 778,923,327.07
5. Step 5: Solve for x
   x = 778,923,327.07/31,401
6. Step 6: Final answer
   x = 24,805.69