Finding the Fourth Proportional to 17,781.15, 26,671.56 and 7,248.71

Step by Step Solution

1. Step 1: Write the proportion equation
   17,781.15 : 26,671.56 = 7,248.71 : x
2. Step 2: Convert to fraction form
   17,781.15/26,671.56 = 7,248.71/x
3. Step 3: Cross multiply
   17,781.15x = 26,671.56 × 7,248.71
4. Step 4: Simplify right side
   17,781.15x = 193,334,270.33
5. Step 5: Solve for x
   x = 193,334,270.33/17,781.15
6. Step 6: Final answer
   x = 10,872.99