Finding the Fourth Proportional to 17,389.72, 26,087.82 and 7,902.71

Step by Step Solution

1. Step 1: Write the proportion equation
   17,389.72 : 26,087.82 = 7,902.71 : x
2. Step 2: Convert to fraction form
   17,389.72/26,087.82 = 7,902.71/x
3. Step 3: Cross multiply
   17,389.72x = 26,087.82 × 7,902.71
4. Step 4: Simplify right side
   17,389.72x = 206,164,345.55
5. Step 5: Solve for x
   x = 206,164,345.55/17,389.72
6. Step 6: Final answer
   x = 11,855.53