Finding the Fourth Proportional to 33,271.83, 49,878.59 and 12,490.47

Step by Step Solution

1. Step 1: Write the proportion equation
   33,271.83 : 49,878.59 = 12,490.47 : x
2. Step 2: Convert to fraction form
   33,271.83/49,878.59 = 12,490.47/x
3. Step 3: Cross multiply
   33,271.83x = 49,878.59 × 12,490.47
4. Step 4: Simplify right side
   33,271.83x = 623,006,969.58
5. Step 5: Solve for x
   x = 623,006,969.58/33,271.83
6. Step 6: Final answer
   x = 18,724.76