Finding the Fourth Proportional to 7,196.52, 10,782.36 and 5,618.40

Step by Step Solution

1. Step 1: Write the proportion equation
   7,196.52 : 10,782.36 = 5,618.40 : x
2. Step 2: Convert to fraction form
   7,196.52/10,782.36 = 5,618.40/x
3. Step 3: Cross multiply
   7,196.52x = 10,782.36 × 5,618.40
4. Step 4: Simplify right side
   7,196.52x = 60,579,611.42
5. Step 5: Solve for x
   x = 60,579,611.42/7,196.52
6. Step 6: Final answer
   x = 8,417.90