Finding the Fourth Proportional to 12,952.42, 19,400.55 and 8,023.30

Step by Step Solution

1. Step 1: Write the proportion equation
   12,952.42 : 19,400.55 = 8,023.30 : x
2. Step 2: Convert to fraction form
   12,952.42/19,400.55 = 8,023.30/x
3. Step 3: Cross multiply
   12,952.42x = 19,400.55 × 8,023.30
4. Step 4: Simplify right side
   12,952.42x = 155,656,432.82
5. Step 5: Solve for x
   x = 155,656,432.82/12,952.42
6. Step 6: Final answer
   x = 12,017.56