Finding the Fourth Proportional to 33,259.61, 49,914.80 and 12,219.59

Step by Step Solution

1. Step 1: Write the proportion equation
   33,259.61 : 49,914.80 = 12,219.59 : x
2. Step 2: Convert to fraction form
   33,259.61/49,914.80 = 12,219.59/x
3. Step 3: Cross multiply
   33,259.61x = 49,914.80 × 12,219.59
4. Step 4: Simplify right side
   33,259.61x = 609,938,329.83
5. Step 5: Solve for x
   x = 609,938,329.83/33,259.61
6. Step 6: Final answer
   x = 18,338.71