Finding the Fourth Proportional to 5,150.34, 7,659.25 and 4,986.31

Step by Step Solution

1. Step 1: Write the proportion equation
   5,150.34 : 7,659.25 = 4,986.31 : x
2. Step 2: Convert to fraction form
   5,150.34/7,659.25 = 4,986.31/x
3. Step 3: Cross multiply
   5,150.34x = 7,659.25 × 4,986.31
4. Step 4: Simplify right side
   5,150.34x = 38,191,369.94
5. Step 5: Solve for x
   x = 38,191,369.94/5,150.34
6. Step 6: Final answer
   x = 7,415.32