Finding the Fourth Proportional to 12,300.82, 18,446.94 and 7,613.62

Step by Step Solution

1. Step 1: Write the proportion equation
   12,300.82 : 18,446.94 = 7,613.62 : x
2. Step 2: Convert to fraction form
   12,300.82/18,446.94 = 7,613.62/x
3. Step 3: Cross multiply
   12,300.82x = 18,446.94 × 7,613.62
4. Step 4: Simplify right side
   12,300.82x = 140,447,991.32
5. Step 5: Solve for x
   x = 140,447,991.32/12,300.82
6. Step 6: Final answer
   x = 11,417.77