Finding the Fourth Proportional to 42,957.16, 59,263.34 and 28,814.56

Step by Step Solution

1. Step 1: Write the proportion equation
   42,957.16 : 59,263.34 = 28,814.56 : x
2. Step 2: Convert to fraction form
   42,957.16/59,263.34 = 28,814.56/x
3. Step 3: Cross multiply
   42,957.16x = 59,263.34 × 28,814.56
4. Step 4: Simplify right side
   42,957.16x = 1,707,647,066.23
5. Step 5: Solve for x
   x = 1,707,647,066.23/42,957.16
6. Step 6: Final answer
   x = 39,752.33