Finding the Fourth Proportional to 215,358.05, 323,109.02 and 95,398.72

Step by Step Solution

1. Step 1: Write the proportion equation
   215,358.05 : 323,109.02 = 95,398.72 : x
2. Step 2: Convert to fraction form
   215,358.05/323,109.02 = 95,398.72/x
3. Step 3: Cross multiply
   215,358.05x = 323,109.02 × 95,398.72
4. Step 4: Simplify right side
   215,358.05x = 30,824,186,359.18
5. Step 5: Solve for x
   x = 30,824,186,359.18/215,358.05
6. Step 6: Final answer
   x = 143,129.95