Finding the Fourth Proportional to 10,031.17, 13,843.78 and 5,555.33

Step by Step Solution

1. Step 1: Write the proportion equation
   10,031.17 : 13,843.78 = 5,555.33 : x
2. Step 2: Convert to fraction form
   10,031.17/13,843.78 = 5,555.33/x
3. Step 3: Cross multiply
   10,031.17x = 13,843.78 × 5,555.33
4. Step 4: Simplify right side
   10,031.17x = 76,906,766.35
5. Step 5: Solve for x
   x = 76,906,766.35/10,031.17
6. Step 6: Final answer
   x = 7,666.78