Finding the Fourth Proportional to 10,031.38, 13,843.10 and 5,555.12

Step by Step Solution

1. Step 1: Write the proportion equation
   10,031.38 : 13,843.10 = 5,555.12 : x
2. Step 2: Convert to fraction form
   10,031.38/13,843.10 = 5,555.12/x
3. Step 3: Cross multiply
   10,031.38x = 13,843.10 × 5,555.12
4. Step 4: Simplify right side
   10,031.38x = 76,900,081.67
5. Step 5: Solve for x
   x = 76,900,081.67/10,031.38
6. Step 6: Final answer
   x = 7,665.95