Finding the Fourth Proportional to 31,465.82, 43,422.80 and 17,319.57

Step by Step Solution

1. Step 1: Write the proportion equation
   31,465.82 : 43,422.80 = 17,319.57 : x
2. Step 2: Convert to fraction form
   31,465.82/43,422.80 = 17,319.57/x
3. Step 3: Cross multiply
   31,465.82x = 43,422.80 × 17,319.57
4. Step 4: Simplify right side
   31,465.82x = 752,064,137.60
5. Step 5: Solve for x
   x = 752,064,137.60/31,465.82
6. Step 6: Final answer
   x = 23,900.99