Finding the Fourth Proportional to 300,104.88, 414,098.72 and 172,755.86

Step by Step Solution

1. Step 1: Write the proportion equation
   300,104.88 : 414,098.72 = 172,755.86 : x
2. Step 2: Convert to fraction form
   300,104.88/414,098.72 = 172,755.86/x
3. Step 3: Cross multiply
   300,104.88x = 414,098.72 × 172,755.86
4. Step 4: Simplify right side
   300,104.88x = 71,537,980,498.50
5. Step 5: Solve for x
   x = 71,537,980,498.50/300,104.88
6. Step 6: Final answer
   x = 238,376.60