Finding the Fourth Proportional to 172,380.72, 258,036.48 and 93,298.80

Step by Step Solution

1. Step 1: Write the proportion equation
   172,380.72 : 258,036.48 = 93,298.80 : x
2. Step 2: Convert to fraction form
   172,380.72/258,036.48 = 93,298.80/x
3. Step 3: Cross multiply
   172,380.72x = 258,036.48 × 93,298.80
4. Step 4: Simplify right side
   172,380.72x = 24,074,493,940.22
5. Step 5: Solve for x
   x = 24,074,493,940.22/172,380.72
6. Step 6: Final answer
   x = 139,658.85