Finding the Fourth Proportional to 30,968.30, 42,734.98 and 17,539.72

Step by Step Solution

1. Step 1: Write the proportion equation
   30,968.30 : 42,734.98 = 17,539.72 : x
2. Step 2: Convert to fraction form
   30,968.30/42,734.98 = 17,539.72/x
3. Step 3: Cross multiply
   30,968.30x = 42,734.98 × 17,539.72
4. Step 4: Simplify right side
   30,968.30x = 749,559,583.41
5. Step 5: Solve for x
   x = 749,559,583.41/30,968.30
6. Step 6: Final answer
   x = 24,204.09