Finding the Fourth Proportional to 117,103.42, 175,654.72 and 28,356.85

Step by Step Solution

1. Step 1: Write the proportion equation
   117,103.42 : 175,654.72 = 28,356.85 : x
2. Step 2: Convert to fraction form
   117,103.42/175,654.72 = 28,356.85/x
3. Step 3: Cross multiply
   117,103.42x = 175,654.72 × 28,356.85
4. Step 4: Simplify right side
   117,103.42x = 4,981,014,546.83
5. Step 5: Solve for x
   x = 4,981,014,546.83/117,103.42
6. Step 6: Final answer
   x = 42,535.18