Finding the Fourth Proportional to 10,031.16, 13,842.91 and 5,555.10

Step by Step Solution

1. Step 1: Write the proportion equation
   10,031.16 : 13,842.91 = 5,555.10 : x
2. Step 2: Convert to fraction form
   10,031.16/13,842.91 = 5,555.10/x
3. Step 3: Cross multiply
   10,031.16x = 13,842.91 × 5,555.10
4. Step 4: Simplify right side
   10,031.16x = 76,898,749.34
5. Step 5: Solve for x
   x = 76,898,749.34/10,031.16
6. Step 6: Final answer
   x = 7,665.99