Finding the Fourth Proportional to 10,100.75, 13,940.12 and 5,912.51

Step by Step Solution

1. Step 1: Write the proportion equation
   10,100.75 : 13,940.12 = 5,912.51 : x
2. Step 2: Convert to fraction form
   10,100.75/13,940.12 = 5,912.51/x
3. Step 3: Cross multiply
   10,100.75x = 13,940.12 × 5,912.51
4. Step 4: Simplify right side
   10,100.75x = 82,421,098.90
5. Step 5: Solve for x
   x = 82,421,098.90/10,100.75
6. Step 6: Final answer
   x = 8,159.90