Finding the Fourth Proportional to 42,868.62, 59,179.23 and 28,552.28

Step by Step Solution

1. Step 1: Write the proportion equation
   42,868.62 : 59,179.23 = 28,552.28 : x
2. Step 2: Convert to fraction form
   42,868.62/59,179.23 = 28,552.28/x
3. Step 3: Cross multiply
   42,868.62x = 59,179.23 × 28,552.28
4. Step 4: Simplify right side
   42,868.62x = 1,689,701,649.25
5. Step 5: Solve for x
   x = 1,689,701,649.25/42,868.62
6. Step 6: Final answer
   x = 39,415.82