Finding the Fourth Proportional to 5,116.28, 7,667.73 and 4,987.49

Step by Step Solution

1. Step 1: Write the proportion equation
   5,116.28 : 7,667.73 = 4,987.49 : x
2. Step 2: Convert to fraction form
   5,116.28/7,667.73 = 4,987.49/x
3. Step 3: Cross multiply
   5,116.28x = 7,667.73 × 4,987.49
4. Step 4: Simplify right side
   5,116.28x = 38,242,688.36
5. Step 5: Solve for x
   x = 38,242,688.36/5,116.28
6. Step 6: Final answer
   x = 7,474.71