Finding the Fourth Proportional to 10,129.12, 13,978.08 and 5,936.56

Step by Step Solution

1. Step 1: Write the proportion equation
   10,129.12 : 13,978.08 = 5,936.56 : x
2. Step 2: Convert to fraction form
   10,129.12/13,978.08 = 5,936.56/x
3. Step 3: Cross multiply
   10,129.12x = 13,978.08 × 5,936.56
4. Step 4: Simplify right side
   10,129.12x = 82,981,710.60
5. Step 5: Solve for x
   x = 82,981,710.60/10,129.12
6. Step 6: Final answer
   x = 8,192.39