Finding the Fourth Proportional to 31,870.17, 43,980.21 and 17,722.71

Step by Step Solution

1. Step 1: Write the proportion equation
   31,870.17 : 43,980.21 = 17,722.71 : x
2. Step 2: Convert to fraction form
   31,870.17/43,980.21 = 17,722.71/x
3. Step 3: Cross multiply
   31,870.17x = 43,980.21 × 17,722.71
4. Step 4: Simplify right side
   31,870.17x = 779,448,507.57
5. Step 5: Solve for x
   x = 779,448,507.57/31,870.17
6. Step 6: Final answer
   x = 24,456.99