Finding the Fourth Proportional to 298,790.24, 412,326.78 and 162,830.12

Step by Step Solution

1. Step 1: Write the proportion equation
   298,790.24 : 412,326.78 = 162,830.12 : x
2. Step 2: Convert to fraction form
   298,790.24/412,326.78 = 162,830.12/x
3. Step 3: Cross multiply
   298,790.24x = 412,326.78 × 162,830.12
4. Step 4: Simplify right side
   298,790.24x = 67,139,219,066.61
5. Step 5: Solve for x
   x = 67,139,219,066.61/298,790.24
6. Step 6: Final answer
   x = 224,703.52