Finding the Fourth Proportional to 172,184.46, 258,276.72 and 53,856.42

Step by Step Solution

1. Step 1: Write the proportion equation
   172,184.46 : 258,276.72 = 53,856.42 : x
2. Step 2: Convert to fraction form
   172,184.46/258,276.72 = 53,856.42/x
3. Step 3: Cross multiply
   172,184.46x = 258,276.72 × 53,856.42
4. Step 4: Simplify right side
   172,184.46x = 13,909,859,508.54
5. Step 5: Solve for x
   x = 13,909,859,508.54/172,184.46
6. Step 6: Final answer
   x = 80,784.64