Finding the Fourth Proportional to 300,518.32, 450,061.86 and 173,891.69

Step by Step Solution

1. Step 1: Write the proportion equation
   300,518.32 : 450,061.86 = 173,891.69 : x
2. Step 2: Convert to fraction form
   300,518.32/450,061.86 = 173,891.69/x
3. Step 3: Cross multiply
   300,518.32x = 450,061.86 × 173,891.69
4. Step 4: Simplify right side
   300,518.32x = 78,262,017,439.94
5. Step 5: Solve for x
   x = 78,262,017,439.94/300,518.32
6. Step 6: Final answer
   x = 260,423.45