Finding the Fourth Proportional to 31,511.57, 43,486.77 and 17,364.42

Step by Step Solution

1. Step 1: Write the proportion equation
   31,511.57 : 43,486.77 = 17,364.42 : x
2. Step 2: Convert to fraction form
   31,511.57/43,486.77 = 17,364.42/x
3. Step 3: Cross multiply
   31,511.57x = 43,486.77 × 17,364.42
4. Step 4: Simplify right side
   31,511.57x = 755,122,538.72
5. Step 5: Solve for x
   x = 755,122,538.72/31,511.57
6. Step 6: Final answer
   x = 23,963.34