Finding the Fourth Proportional to 12,277.49, 18,416.86 and 3,513.69

Step by Step Solution

1. Step 1: Write the proportion equation
   12,277.49 : 18,416.86 = 3,513.69 : x
2. Step 2: Convert to fraction form
   12,277.49/18,416.86 = 3,513.69/x
3. Step 3: Cross multiply
   12,277.49x = 18,416.86 × 3,513.69
4. Step 4: Simplify right side
   12,277.49x = 64,711,128.03
5. Step 5: Solve for x
   x = 64,711,128.03/12,277.49
6. Step 6: Final answer
   x = 5,270.72