Finding the Fourth Proportional to 30,487.46, 42,071.72 and 17,058.96

Step by Step Solution

1. Step 1: Write the proportion equation
   30,487.46 : 42,071.72 = 17,058.96 : x
2. Step 2: Convert to fraction form
   30,487.46/42,071.72 = 17,058.96/x
3. Step 3: Cross multiply
   30,487.46x = 42,071.72 × 17,058.96
4. Step 4: Simplify right side
   30,487.46x = 717,699,788.61
5. Step 5: Solve for x
   x = 717,699,788.61/30,487.46
6. Step 6: Final answer
   x = 23,540.82