Finding the Fourth Proportional to 31,174.50, 43,019.20 and 17,745.72

Step by Step Solution

1. Step 1: Write the proportion equation
   31,174.50 : 43,019.20 = 17,745.72 : x
2. Step 2: Convert to fraction form
   31,174.50/43,019.20 = 17,745.72/x
3. Step 3: Cross multiply
   31,174.50x = 43,019.20 × 17,745.72
4. Step 4: Simplify right side
   31,174.50x = 763,406,677.82
5. Step 5: Solve for x
   x = 763,406,677.82/31,174.50
6. Step 6: Final answer
   x = 24,488.18