Finding the Fourth Proportional to 30,986.55, 42,761.32 and 17,560.37

Step by Step Solution

1. Step 1: Write the proportion equation
   30,986.55 : 42,761.32 = 17,560.37 : x
2. Step 2: Convert to fraction form
   30,986.55/42,761.32 = 17,560.37/x
3. Step 3: Cross multiply
   30,986.55x = 42,761.32 × 17,560.37
4. Step 4: Simplify right side
   30,986.55x = 750,904,663.89
5. Step 5: Solve for x
   x = 750,904,663.89/30,986.55
6. Step 6: Final answer
   x = 24,233.25