Finding the Fourth Proportional to 12,867.01, 19,300.47 and 8,452.54

Step by Step Solution

1. Step 1: Write the proportion equation
   12,867.01 : 19,300.47 = 8,452.54 : x
2. Step 2: Convert to fraction form
   12,867.01/19,300.47 = 8,452.54/x
3. Step 3: Cross multiply
   12,867.01x = 19,300.47 × 8,452.54
4. Step 4: Simplify right side
   12,867.01x = 163,137,994.69
5. Step 5: Solve for x
   x = 163,137,994.69/12,867.01
6. Step 6: Final answer
   x = 12,678.78