Finding the Fourth Proportional to 488,042.86, 673,506.03 and 281,196.94

Step by Step Solution

1. Step 1: Write the proportion equation
   488,042.86 : 673,506.03 = 281,196.94 : x
2. Step 2: Convert to fraction form
   488,042.86/673,506.03 = 281,196.94/x
3. Step 3: Cross multiply
   488,042.86x = 673,506.03 × 281,196.94
4. Step 4: Simplify right side
   488,042.86x = 189,387,834,707.55
5. Step 5: Solve for x
   x = 189,387,834,707.55/488,042.86
6. Step 6: Final answer
   x = 388,055.74