Finding the Fourth Proportional to 30,404, 45,608.56 and 8,516

Step by Step Solution

1. Step 1: Write the proportion equation
   30,404 : 45,608.56 = 8,516 : x
2. Step 2: Convert to fraction form
   30,404/45,608.56 = 8,516/x
3. Step 3: Cross multiply
   30,404x = 45,608.56 × 8,516
4. Step 4: Simplify right side
   30,404x = 388,402,496.96
5. Step 5: Solve for x
   x = 388,402,496.96/30,404
6. Step 6: Final answer
   x = 12,774.72