Finding the Fourth Proportional to 52,124.67, 71,930.30 and 30,891.33

Step by Step Solution

1. Step 1: Write the proportion equation
   52,124.67 : 71,930.30 = 30,891.33 : x
2. Step 2: Convert to fraction form
   52,124.67/71,930.30 = 30,891.33/x
3. Step 3: Cross multiply
   52,124.67x = 71,930.30 × 30,891.33
4. Step 4: Simplify right side
   52,124.67x = 2,222,022,479.84
5. Step 5: Solve for x
   x = 2,222,022,479.84/52,124.67
6. Step 6: Final answer
   x = 42,629.00