Finding the Fourth Proportional to 13,511.50, 18,648.04 and 7,922.50

Step by Step Solution

1. Step 1: Write the proportion equation
   13,511.50 : 18,648.04 = 7,922.50 : x
2. Step 2: Convert to fraction form
   13,511.50/18,648.04 = 7,922.50/x
3. Step 3: Cross multiply
   13,511.50x = 18,648.04 × 7,922.50
4. Step 4: Simplify right side
   13,511.50x = 147,739,096.90
5. Step 5: Solve for x
   x = 147,739,096.90/13,511.50
6. Step 6: Final answer
   x = 10,934.32