Finding the Fourth Proportional to 404,932, 558,840.72 and 226,118.56

Step by Step Solution

1. Step 1: Write the proportion equation
   404,932 : 558,840.72 = 226,118.56 : x
2. Step 2: Convert to fraction form
   404,932/558,840.72 = 226,118.56/x
3. Step 3: Cross multiply
   404,932x = 558,840.72 × 226,118.56
4. Step 4: Simplify right side
   404,932x = 126,364,258,875.76
5. Step 5: Solve for x
   x = 126,364,258,875.76/404,932
6. Step 6: Final answer
   x = 312,062.91