Finding the Fourth Proportional to 9,679.38, 13,359.59 and 5,701.88

Step by Step Solution

1. Step 1: Write the proportion equation
   9,679.38 : 13,359.59 = 5,701.88 : x
2. Step 2: Convert to fraction form
   9,679.38/13,359.59 = 5,701.88/x
3. Step 3: Cross multiply
   9,679.38x = 13,359.59 × 5,701.88
4. Step 4: Simplify right side
   9,679.38x = 76,174,683.72
5. Step 5: Solve for x
   x = 76,174,683.72/9,679.38
6. Step 6: Final answer
   x = 7,869.79