Finding the Fourth Proportional to 17,982.54, 26,777.89 and 17,785.98

Step by Step Solution

1. Step 1: Write the proportion equation
   17,982.54 : 26,777.89 = 17,785.98 : x
2. Step 2: Convert to fraction form
   17,982.54/26,777.89 = 17,785.98/x
3. Step 3: Cross multiply
   17,982.54x = 26,777.89 × 17,785.98
4. Step 4: Simplify right side
   17,982.54x = 476,271,015.98
5. Step 5: Solve for x
   x = 476,271,015.98/17,982.54
6. Step 6: Final answer
   x = 26,485.19