Finding the Fourth Proportional to 42,797.73, 64,161.82 and 17,856.36

Step by Step Solution

1. Step 1: Write the proportion equation
   42,797.73 : 64,161.82 = 17,856.36 : x
2. Step 2: Convert to fraction form
   42,797.73/64,161.82 = 17,856.36/x
3. Step 3: Cross multiply
   42,797.73x = 64,161.82 × 17,856.36
4. Step 4: Simplify right side
   42,797.73x = 1,145,696,466.89
5. Step 5: Solve for x
   x = 1,145,696,466.89/42,797.73
6. Step 6: Final answer
   x = 26,770.03