Finding the Fourth Proportional to 31,271.72, 43,155.48 and 17,124.32

Step by Step Solution

1. Step 1: Write the proportion equation
   31,271.72 : 43,155.48 = 17,124.32 : x
2. Step 2: Convert to fraction form
   31,271.72/43,155.48 = 17,124.32/x
3. Step 3: Cross multiply
   31,271.72x = 43,155.48 × 17,124.32
4. Step 4: Simplify right side
   31,271.72x = 739,008,249.27
5. Step 5: Solve for x
   x = 739,008,249.27/31,271.72
6. Step 6: Final answer
   x = 23,631.84