Finding the Fourth Proportional to 12,667.55, 18,996.77 and 4,345.41

Step by Step Solution

1. Step 1: Write the proportion equation
   12,667.55 : 18,996.77 = 4,345.41 : x
2. Step 2: Convert to fraction form
   12,667.55/18,996.77 = 4,345.41/x
3. Step 3: Cross multiply
   12,667.55x = 18,996.77 × 4,345.41
4. Step 4: Simplify right side
   12,667.55x = 82,548,685.11
5. Step 5: Solve for x
   x = 82,548,685.11/12,667.55
6. Step 6: Final answer
   x = 6,516.55