Finding the Fourth Proportional to 10,031.76, 13,841.87 and 5,555.30

Step by Step Solution

1. Step 1: Write the proportion equation
   10,031.76 : 13,841.87 = 5,555.30 : x
2. Step 2: Convert to fraction form
   10,031.76/13,841.87 = 5,555.30/x
3. Step 3: Cross multiply
   10,031.76x = 13,841.87 × 5,555.30
4. Step 4: Simplify right side
   10,031.76x = 76,895,643.43
5. Step 5: Solve for x
   x = 76,895,643.43/10,031.76
6. Step 6: Final answer
   x = 7,665.22