Finding the Fourth Proportional to 31,578.15, 43,577.82 and 17,430.96

Step by Step Solution

1. Step 1: Write the proportion equation
   31,578.15 : 43,577.82 = 17,430.96 : x
2. Step 2: Convert to fraction form
   31,578.15/43,577.82 = 17,430.96/x
3. Step 3: Cross multiply
   31,578.15x = 43,577.82 × 17,430.96
4. Step 4: Simplify right side
   31,578.15x = 759,603,237.31
5. Step 5: Solve for x
   x = 759,603,237.31/31,578.15
6. Step 6: Final answer
   x = 24,054.71