Finding the Fourth Proportional to 33,018.60, 49,404.24 and 19,642.80

Step by Step Solution

1. Step 1: Write the proportion equation
   33,018.60 : 49,404.24 = 19,642.80 : x
2. Step 2: Convert to fraction form
   33,018.60/49,404.24 = 19,642.80/x
3. Step 3: Cross multiply
   33,018.60x = 49,404.24 × 19,642.80
4. Step 4: Simplify right side
   33,018.60x = 970,437,605.47
5. Step 5: Solve for x
   x = 970,437,605.47/33,018.60
6. Step 6: Final answer
   x = 29,390.63