Finding the Fourth Proportional to 491,078.53, 736,614.55 and 126,339.58

Step by Step Solution

1. Step 1: Write the proportion equation
   491,078.53 : 736,614.55 = 126,339.58 : x
2. Step 2: Convert to fraction form
   491,078.53/736,614.55 = 126,339.58/x
3. Step 3: Cross multiply
   491,078.53x = 736,614.55 × 126,339.58
4. Step 4: Simplify right side
   491,078.53x = 93,063,572,868.89
5. Step 5: Solve for x
   x = 93,063,572,868.89/491,078.53
6. Step 6: Final answer
   x = 189,508.54