Finding the Fourth Proportional to 300,845.88, 415,210.86 and 173,496.12

Step by Step Solution

1. Step 1: Write the proportion equation
   300,845.88 : 415,210.86 = 173,496.12 : x
2. Step 2: Convert to fraction form
   300,845.88/415,210.86 = 173,496.12/x
3. Step 3: Cross multiply
   300,845.88x = 415,210.86 × 173,496.12
4. Step 4: Simplify right side
   300,845.88x = 72,037,473,191.86
5. Step 5: Solve for x
   x = 72,037,473,191.86/300,845.88
6. Step 6: Final answer
   x = 239,449.76