Finding the Fourth Proportional to 499,036.78, 748,558.41 and 199,542.52

Step by Step Solution

1. Step 1: Write the proportion equation
   499,036.78 : 748,558.41 = 199,542.52 : x
2. Step 2: Convert to fraction form
   499,036.78/748,558.41 = 199,542.52/x
3. Step 3: Cross multiply
   499,036.78x = 748,558.41 × 199,542.52
4. Step 4: Simplify right side
   499,036.78x = 149,369,231,498.59
5. Step 5: Solve for x
   x = 149,369,231,498.59/499,036.78
6. Step 6: Final answer
   x = 299,315.08