Finding the Fourth Proportional to 301,291.32, 415,786.86 and 173,978.04

Step by Step Solution

1. Step 1: Write the proportion equation
   301,291.32 : 415,786.86 = 173,978.04 : x
2. Step 2: Convert to fraction form
   301,291.32/415,786.86 = 173,978.04/x
3. Step 3: Cross multiply
   301,291.32x = 415,786.86 × 173,978.04
4. Step 4: Simplify right side
   301,291.32x = 72,337,782,960.55
5. Step 5: Solve for x
   x = 72,337,782,960.55/301,291.32
6. Step 6: Final answer
   x = 240,092.49