Finding the Fourth Proportional to 55,087.98, 82,633.92 and 17,643.18

Step by Step Solution

1. Step 1: Write the proportion equation
   55,087.98 : 82,633.92 = 17,643.18 : x
2. Step 2: Convert to fraction form
   55,087.98/82,633.92 = 17,643.18/x
3. Step 3: Cross multiply
   55,087.98x = 82,633.92 × 17,643.18
4. Step 4: Simplify right side
   55,087.98x = 1,457,925,124.67
5. Step 5: Solve for x
   x = 1,457,925,124.67/55,087.98
6. Step 6: Final answer
   x = 26,465.39