Finding the Fourth Proportional to 12,667.18, 19,000.56 and 3,307.24

Step by Step Solution

1. Step 1: Write the proportion equation
   12,667.18 : 19,000.56 = 3,307.24 : x
2. Step 2: Convert to fraction form
   12,667.18/19,000.56 = 3,307.24/x
3. Step 3: Cross multiply
   12,667.18x = 19,000.56 × 3,307.24
4. Step 4: Simplify right side
   12,667.18x = 62,839,412.05
5. Step 5: Solve for x
   x = 62,839,412.05/12,667.18
6. Step 6: Final answer
   x = 4,960.81