Finding the Fourth Proportional to 31,585.56, 43,587.72 and 17,438.10

Step by Step Solution

1. Step 1: Write the proportion equation
   31,585.56 : 43,587.72 = 17,438.10 : x
2. Step 2: Convert to fraction form
   31,585.56/43,587.72 = 17,438.10/x
3. Step 3: Cross multiply
   31,585.56x = 43,587.72 × 17,438.10
4. Step 4: Simplify right side
   31,585.56x = 760,087,020.13
5. Step 5: Solve for x
   x = 760,087,020.13/31,585.56
6. Step 6: Final answer
   x = 24,064.38