Finding the Fourth Proportional to 7,689.96, 10,611.72 and 4,332.72

Step by Step Solution

1. Step 1: Write the proportion equation
   7,689.96 : 10,611.72 = 4,332.72 : x
2. Step 2: Convert to fraction form
   7,689.96/10,611.72 = 4,332.72/x
3. Step 3: Cross multiply
   7,689.96x = 10,611.72 × 4,332.72
4. Step 4: Simplify right side
   7,689.96x = 45,977,611.48
5. Step 5: Solve for x
   x = 45,977,611.48/7,689.96
6. Step 6: Final answer
   x = 5,978.91