Finding the Fourth Proportional to 55,217.57, 82,839.59 and 17,781.17

Step by Step Solution

1. Step 1: Write the proportion equation
   55,217.57 : 82,839.59 = 17,781.17 : x
2. Step 2: Convert to fraction form
   55,217.57/82,839.59 = 17,781.17/x
3. Step 3: Cross multiply
   55,217.57x = 82,839.59 × 17,781.17
4. Step 4: Simplify right side
   55,217.57x = 1,472,984,396.10
5. Step 5: Solve for x
   x = 1,472,984,396.10/55,217.57
6. Step 6: Final answer
   x = 26,676.01