Finding the Fourth Proportional to 12,778.43, 19,168.52 and 4,460.54

Step by Step Solution

1. Step 1: Write the proportion equation
   12,778.43 : 19,168.52 = 4,460.54 : x
2. Step 2: Convert to fraction form
   12,778.43/19,168.52 = 4,460.54/x
3. Step 3: Cross multiply
   12,778.43x = 19,168.52 × 4,460.54
4. Step 4: Simplify right side
   12,778.43x = 85,501,832.06
5. Step 5: Solve for x
   x = 85,501,832.06/12,778.43
6. Step 6: Final answer
   x = 6,691.11