Finding the Fourth Proportional to 12,850.82, 19,277.76 and 5,454.30

Step by Step Solution

1. Step 1: Write the proportion equation
   12,850.82 : 19,277.76 = 5,454.30 : x
2. Step 2: Convert to fraction form
   12,850.82/19,277.76 = 5,454.30/x
3. Step 3: Cross multiply
   12,850.82x = 19,277.76 × 5,454.30
4. Step 4: Simplify right side
   12,850.82x = 105,146,686.37
5. Step 5: Solve for x
   x = 105,146,686.37/12,850.82
6. Step 6: Final answer
   x = 8,182.10