Finding the Fourth Proportional to 10,120.90, 13,964.59 and 5,872.67

Step by Step Solution

1. Step 1: Write the proportion equation
   10,120.90 : 13,964.59 = 5,872.67 : x
2. Step 2: Convert to fraction form
   10,120.90/13,964.59 = 5,872.67/x
3. Step 3: Cross multiply
   10,120.90x = 13,964.59 × 5,872.67
4. Step 4: Simplify right side
   10,120.90x = 82,009,471.01
5. Step 5: Solve for x
   x = 82,009,471.01/10,120.90
6. Step 6: Final answer
   x = 8,102.98