Finding the Fourth Proportional to 140,728.59, 211,093.31 and 34,112.12

Step by Step Solution

1. Step 1: Write the proportion equation
   140,728.59 : 211,093.31 = 34,112.12 : x
2. Step 2: Convert to fraction form
   140,728.59/211,093.31 = 34,112.12/x
3. Step 3: Cross multiply
   140,728.59x = 211,093.31 × 34,112.12
4. Step 4: Simplify right side
   140,728.59x = 7,200,840,934.93
5. Step 5: Solve for x
   x = 7,200,840,934.93/140,728.59
6. Step 6: Final answer
   x = 51,168.29