Finding the Fourth Proportional to 9,915.34, 13,683.08 and 5,723.50

Step by Step Solution

1. Step 1: Write the proportion equation
   9,915.34 : 13,683.08 = 5,723.50 : x
2. Step 2: Convert to fraction form
   9,915.34/13,683.08 = 5,723.50/x
3. Step 3: Cross multiply
   9,915.34x = 13,683.08 × 5,723.50
4. Step 4: Simplify right side
   9,915.34x = 78,315,108.38
5. Step 5: Solve for x
   x = 78,315,108.38/9,915.34
6. Step 6: Final answer
   x = 7,898.38