Finding the Fourth Proportional to 4,667.76, 6,438.15 and 3,173.07

Step by Step Solution

1. Step 1: Write the proportion equation
   4,667.76 : 6,438.15 = 3,173.07 : x
2. Step 2: Convert to fraction form
   4,667.76/6,438.15 = 3,173.07/x
3. Step 3: Cross multiply
   4,667.76x = 6,438.15 × 3,173.07
4. Step 4: Simplify right side
   4,667.76x = 20,428,700.62
5. Step 5: Solve for x
   x = 20,428,700.62/4,667.76
6. Step 6: Final answer
   x = 4,376.55