Finding the Fourth Proportional to 7,685.31, 11,526.12 and 3,522.72

Step by Step Solution

1. Step 1: Write the proportion equation
   7,685.31 : 11,526.12 = 3,522.72 : x
2. Step 2: Convert to fraction form
   7,685.31/11,526.12 = 3,522.72/x
3. Step 3: Cross multiply
   7,685.31x = 11,526.12 × 3,522.72
4. Step 4: Simplify right side
   7,685.31x = 40,603,293.45
5. Step 5: Solve for x
   x = 40,603,293.45/7,685.31
6. Step 6: Final answer
   x = 5,283.23