Finding the Fourth Proportional to 423,158.72, 635,300.82 and 245,793.02

Step by Step Solution

1. Step 1: Write the proportion equation
   423,158.72 : 635,300.82 = 245,793.02 : x
2. Step 2: Convert to fraction form
   423,158.72/635,300.82 = 245,793.02/x
3. Step 3: Cross multiply
   423,158.72x = 635,300.82 × 245,793.02
4. Step 4: Simplify right side
   423,158.72x = 156,152,503,979.77
5. Step 5: Solve for x
   x = 156,152,503,979.77/423,158.72
6. Step 6: Final answer
   x = 369,016.40