Finding the Fourth Proportional to 12,548.72, 18,826.43 and 3,783.92

Step by Step Solution

1. Step 1: Write the proportion equation
   12,548.72 : 18,826.43 = 3,783.92 : x
2. Step 2: Convert to fraction form
   12,548.72/18,826.43 = 3,783.92/x
3. Step 3: Cross multiply
   12,548.72x = 18,826.43 × 3,783.92
4. Step 4: Simplify right side
   12,548.72x = 71,237,591.95
5. Step 5: Solve for x
   x = 71,237,591.95/12,548.72
6. Step 6: Final answer
   x = 5,676.88