Finding the Fourth Proportional to 57,410.77, 86,069.69 and 17,947.57

Step by Step Solution

1. Step 1: Write the proportion equation
   57,410.77 : 86,069.69 = 17,947.57 : x
2. Step 2: Convert to fraction form
   57,410.77/86,069.69 = 17,947.57/x
3. Step 3: Cross multiply
   57,410.77x = 86,069.69 × 17,947.57
4. Step 4: Simplify right side
   57,410.77x = 1,544,741,696.42
5. Step 5: Solve for x
   x = 1,544,741,696.42/57,410.77
6. Step 6: Final answer
   x = 26,906.83