Finding the Fourth Proportional to 31,585.89, 43,587.41 and 17,438.70

Step by Step Solution

1. Step 1: Write the proportion equation
   31,585.89 : 43,587.41 = 17,438.70 : x
2. Step 2: Convert to fraction form
   31,585.89/43,587.41 = 17,438.70/x
3. Step 3: Cross multiply
   31,585.89x = 43,587.41 × 17,438.70
4. Step 4: Simplify right side
   31,585.89x = 760,107,679.57
5. Step 5: Solve for x
   x = 760,107,679.57/31,585.89
6. Step 6: Final answer
   x = 24,064.79