Finding the Fourth Proportional to 42,793.10, 59,075.08 and 28,476.79

Step by Step Solution

1. Step 1: Write the proportion equation
   42,793.10 : 59,075.08 = 28,476.79 : x
2. Step 2: Convert to fraction form
   42,793.10/59,075.08 = 28,476.79/x
3. Step 3: Cross multiply
   42,793.10x = 59,075.08 × 28,476.79
4. Step 4: Simplify right side
   42,793.10x = 1,682,268,794.89
5. Step 5: Solve for x
   x = 1,682,268,794.89/42,793.10
6. Step 6: Final answer
   x = 39,311.69