Finding the Fourth Proportional to 5,123.67, 7,680.69 and 4,667.16

Step by Step Solution

1. Step 1: Write the proportion equation
   5,123.67 : 7,680.69 = 4,667.16 : x
2. Step 2: Convert to fraction form
   5,123.67/7,680.69 = 4,667.16/x
3. Step 3: Cross multiply
   5,123.67x = 7,680.69 × 4,667.16
4. Step 4: Simplify right side
   5,123.67x = 35,847,009.14
5. Step 5: Solve for x
   x = 35,847,009.14/5,123.67
6. Step 6: Final answer
   x = 6,996.35