Finding the Fourth Proportional to 16,781.76, 23,156.26 and 9,706.82

Step by Step Solution

1. Step 1: Write the proportion equation
   16,781.76 : 23,156.26 = 9,706.82 : x
2. Step 2: Convert to fraction form
   16,781.76/23,156.26 = 9,706.82/x
3. Step 3: Cross multiply
   16,781.76x = 23,156.26 × 9,706.82
4. Step 4: Simplify right side
   16,781.76x = 224,773,647.69
5. Step 5: Solve for x
   x = 224,773,647.69/16,781.76
6. Step 6: Final answer
   x = 13,393.93