Finding the Fourth Proportional to 300,445.60, 414,552.72 and 228,699.04

Step by Step Solution

1. Step 1: Write the proportion equation
   300,445.60 : 414,552.72 = 228,699.04 : x
2. Step 2: Convert to fraction form
   300,445.60/414,552.72 = 228,699.04/x
3. Step 3: Cross multiply
   300,445.60x = 414,552.72 × 228,699.04
4. Step 4: Simplify right side
   300,445.60x = 94,807,809,093.39
5. Step 5: Solve for x
   x = 94,807,809,093.39/300,445.60
6. Step 6: Final answer
   x = 315,557.32