Finding the Fourth Proportional to 10,761.34, 16,138.87 and 4,185.96

Step by Step Solution

1. Step 1: Write the proportion equation
   10,761.34 : 16,138.87 = 4,185.96 : x
2. Step 2: Convert to fraction form
   10,761.34/16,138.87 = 4,185.96/x
3. Step 3: Cross multiply
   10,761.34x = 16,138.87 × 4,185.96
4. Step 4: Simplify right side
   10,761.34x = 67,556,664.27
5. Step 5: Solve for x
   x = 67,556,664.27/10,761.34
6. Step 6: Final answer
   x = 6,277.72