Finding the Fourth Proportional to 4,667.55, 7,000.28 and 2,816.12

Step by Step Solution

1. Step 1: Write the proportion equation
   4,667.55 : 7,000.28 = 2,816.12 : x
2. Step 2: Convert to fraction form
   4,667.55/7,000.28 = 2,816.12/x
3. Step 3: Cross multiply
   4,667.55x = 7,000.28 × 2,816.12
4. Step 4: Simplify right side
   4,667.55x = 19,713,596.93
5. Step 5: Solve for x
   x = 19,713,596.93/4,667.55
6. Step 6: Final answer
   x = 4,223.55