Finding the Fourth Proportional to 31,872.42, 43,983.32 and 17,724.96

Step by Step Solution

1. Step 1: Write the proportion equation
   31,872.42 : 43,983.32 = 17,724.96 : x
2. Step 2: Convert to fraction form
   31,872.42/43,983.32 = 17,724.96/x
3. Step 3: Cross multiply
   31,872.42x = 43,983.32 × 17,724.96
4. Step 4: Simplify right side
   31,872.42x = 779,602,499.04
5. Step 5: Solve for x
   x = 779,602,499.04/31,872.42
6. Step 6: Final answer
   x = 24,460.10