Finding the Fourth Proportional to 52,168.24, 71,968.26 and 30,939.76

Step by Step Solution

1. Step 1: Write the proportion equation
   52,168.24 : 71,968.26 = 30,939.76 : x
2. Step 2: Convert to fraction form
   52,168.24/71,968.26 = 30,939.76/x
3. Step 3: Cross multiply
   52,168.24x = 71,968.26 × 30,939.76
4. Step 4: Simplify right side
   52,168.24x = 2,226,680,692.02
5. Step 5: Solve for x
   x = 2,226,680,692.02/52,168.24
6. Step 6: Final answer
   x = 42,682.69