Finding the Fourth Proportional to 354,061, 488,609.04 and 203,158

Step by Step Solution

1. Step 1: Write the proportion equation
   354,061 : 488,609.04 = 203,158 : x
2. Step 2: Convert to fraction form
   354,061/488,609.04 = 203,158/x
3. Step 3: Cross multiply
   354,061x = 488,609.04 × 203,158
4. Step 4: Simplify right side
   354,061x = 99,264,835,348.32
5. Step 5: Solve for x
   x = 99,264,835,348.32/354,061
6. Step 6: Final answer
   x = 280,360.83