Finding the Fourth Proportional to 204,085.58, 281,618.78 and 113,430.78

Step by Step Solution

1. Step 1: Write the proportion equation
   204,085.58 : 281,618.78 = 113,430.78 : x
2. Step 2: Convert to fraction form
   204,085.58/281,618.78 = 113,430.78/x
3. Step 3: Cross multiply
   204,085.58x = 281,618.78 × 113,430.78
4. Step 4: Simplify right side
   204,085.58x = 31,944,237,310.89
5. Step 5: Solve for x
   x = 31,944,237,310.89/204,085.58
6. Step 6: Final answer
   x = 156,523.74