Finding the Fourth Proportional to 31,724.46, 43,780.50 and 17,577

Step by Step Solution

1. Step 1: Write the proportion equation
   31,724.46 : 43,780.50 = 17,577 : x
2. Step 2: Convert to fraction form
   31,724.46/43,780.50 = 17,577/x
3. Step 3: Cross multiply
   31,724.46x = 43,780.50 × 17,577
4. Step 4: Simplify right side
   31,724.46x = 769,529,848.50
5. Step 5: Solve for x
   x = 769,529,848.50/31,724.46
6. Step 6: Final answer
   x = 24,256.67