Finding the Fourth Proportional to 10,031.88, 13,843.47 and 5,555.55

Step by Step Solution

1. Step 1: Write the proportion equation
   10,031.88 : 13,843.47 = 5,555.55 : x
2. Step 2: Convert to fraction form
   10,031.88/13,843.47 = 5,555.55/x
3. Step 3: Cross multiply
   10,031.88x = 13,843.47 × 5,555.55
4. Step 4: Simplify right side
   10,031.88x = 76,908,089.76
5. Step 5: Solve for x
   x = 76,908,089.76/10,031.88
6. Step 6: Final answer
   x = 7,666.37