Finding the Fourth Proportional to 353,128.94, 487,327.55 and 191,994.83

Step by Step Solution

1. Step 1: Write the proportion equation
   353,128.94 : 487,327.55 = 191,994.83 : x
2. Step 2: Convert to fraction form
   353,128.94/487,327.55 = 191,994.83/x
3. Step 3: Cross multiply
   353,128.94x = 487,327.55 × 191,994.83
4. Step 4: Simplify right side
   353,128.94x = 93,564,370,116.57
5. Step 5: Solve for x
   x = 93,564,370,116.57/353,128.94
6. Step 6: Final answer
   x = 264,958.09