Finding the Fourth Proportional to 42,825.02, 59,119.24 and 28,508.72

Step by Step Solution

1. Step 1: Write the proportion equation
   42,825.02 : 59,119.24 = 28,508.72 : x
2. Step 2: Convert to fraction form
   42,825.02/59,119.24 = 28,508.72/x
3. Step 3: Cross multiply
   42,825.02x = 59,119.24 × 28,508.72
4. Step 4: Simplify right side
   42,825.02x = 1,685,413,859.77
5. Step 5: Solve for x
   x = 1,685,413,859.77/42,825.02
6. Step 6: Final answer
   x = 39,355.82