Finding the Fourth Proportional to 10,059.85, 13,896.12 and 7,731.10

Step by Step Solution

1. Step 1: Write the proportion equation
   10,059.85 : 13,896.12 = 7,731.10 : x
2. Step 2: Convert to fraction form
   10,059.85/13,896.12 = 7,731.10/x
3. Step 3: Cross multiply
   10,059.85x = 13,896.12 × 7,731.10
4. Step 4: Simplify right side
   10,059.85x = 107,432,293.33
5. Step 5: Solve for x
   x = 107,432,293.33/10,059.85
6. Step 6: Final answer
   x = 10,679.31