Finding the Fourth Proportional to 17,768.72, 26,648.55 and 5,285.94

Step by Step Solution

1. Step 1: Write the proportion equation
   17,768.72 : 26,648.55 = 5,285.94 : x
2. Step 2: Convert to fraction form
   17,768.72/26,648.55 = 5,285.94/x
3. Step 3: Cross multiply
   17,768.72x = 26,648.55 × 5,285.94
4. Step 4: Simplify right side
   17,768.72x = 140,862,636.39
5. Step 5: Solve for x
   x = 140,862,636.39/17,768.72
6. Step 6: Final answer
   x = 7,927.56