Finding the Fourth Proportional to 33,155.51, 49,746.22 and 12,380.63

Step by Step Solution

1. Step 1: Write the proportion equation
   33,155.51 : 49,746.22 = 12,380.63 : x
2. Step 2: Convert to fraction form
   33,155.51/49,746.22 = 12,380.63/x
3. Step 3: Cross multiply
   33,155.51x = 49,746.22 × 12,380.63
4. Step 4: Simplify right side
   33,155.51x = 615,889,264.04
5. Step 5: Solve for x
   x = 615,889,264.04/33,155.51
6. Step 6: Final answer
   x = 18,575.78