Finding the Fourth Proportional to 215,373.82, 323,042.25 and 131,112.12

Step by Step Solution

1. Step 1: Write the proportion equation
   215,373.82 : 323,042.25 = 131,112.12 : x
2. Step 2: Convert to fraction form
   215,373.82/323,042.25 = 131,112.12/x
3. Step 3: Cross multiply
   215,373.82x = 323,042.25 × 131,112.12
4. Step 4: Simplify right side
   215,373.82x = 42,354,754,247.07
5. Step 5: Solve for x
   x = 42,354,754,247.07/215,373.82
6. Step 6: Final answer
   x = 196,656.93