Finding the Fourth Proportional to 10,031.42, 13,842.31 and 5,555.05

Step by Step Solution

1. Step 1: Write the proportion equation
   10,031.42 : 13,842.31 = 5,555.05 : x
2. Step 2: Convert to fraction form
   10,031.42/13,842.31 = 5,555.05/x
3. Step 3: Cross multiply
   10,031.42x = 13,842.31 × 5,555.05
4. Step 4: Simplify right side
   10,031.42x = 76,894,724.17
5. Step 5: Solve for x
   x = 76,894,724.17/10,031.42
6. Step 6: Final answer
   x = 7,665.39