Finding the Fourth Proportional to 31,520.88, 43,495.38 and 17,371

Step by Step Solution

1. Step 1: Write the proportion equation
   31,520.88 : 43,495.38 = 17,371 : x
2. Step 2: Convert to fraction form
   31,520.88/43,495.38 = 17,371/x
3. Step 3: Cross multiply
   31,520.88x = 43,495.38 × 17,371
4. Step 4: Simplify right side
   31,520.88x = 755,558,245.98
5. Step 5: Solve for x
   x = 755,558,245.98/31,520.88
6. Step 6: Final answer
   x = 23,970.09