Finding the Fourth Proportional to 487,042.92, 672,061.01 and 269,222.18

Step by Step Solution

1. Step 1: Write the proportion equation
   487,042.92 : 672,061.01 = 269,222.18 : x
2. Step 2: Convert to fraction form
   487,042.92/672,061.01 = 269,222.18/x
3. Step 3: Cross multiply
   487,042.92x = 672,061.01 × 269,222.18
4. Step 4: Simplify right side
   487,042.92x = 180,933,725,498.79
5. Step 5: Solve for x
   x = 180,933,725,498.79/487,042.92
6. Step 6: Final answer
   x = 371,494.42