Finding the Fourth Proportional to 42,947.89, 59,250.59 and 28,805.29

Step by Step Solution

1. Step 1: Write the proportion equation
   42,947.89 : 59,250.59 = 28,805.29 : x
2. Step 2: Convert to fraction form
   42,947.89/59,250.59 = 28,805.29/x
3. Step 3: Cross multiply
   42,947.89x = 59,250.59 × 28,805.29
4. Step 4: Simplify right side
   42,947.89x = 1,706,730,243.49
5. Step 5: Solve for x
   x = 1,706,730,243.49/42,947.89
6. Step 6: Final answer
   x = 39,739.56