Finding the Fourth Proportional to 52,128.42, 71,935.46 and 30,895.08

Step by Step Solution

1. Step 1: Write the proportion equation
   52,128.42 : 71,935.46 = 30,895.08 : x
2. Step 2: Convert to fraction form
   52,128.42/71,935.46 = 30,895.08/x
3. Step 3: Cross multiply
   52,128.42x = 71,935.46 × 30,895.08
4. Step 4: Simplify right side
   52,128.42x = 2,222,451,791.54
5. Step 5: Solve for x
   x = 2,222,451,791.54/52,128.42
6. Step 6: Final answer
   x = 42,634.17