Finding the Fourth Proportional to 12,476.75, 18,711.72 and 3,709.58

Step by Step Solution

1. Step 1: Write the proportion equation
   12,476.75 : 18,711.72 = 3,709.58 : x
2. Step 2: Convert to fraction form
   12,476.75/18,711.72 = 3,709.58/x
3. Step 3: Cross multiply
   12,476.75x = 18,711.72 × 3,709.58
4. Step 4: Simplify right side
   12,476.75x = 69,412,528.72
5. Step 5: Solve for x
   x = 69,412,528.72/12,476.75
6. Step 6: Final answer
   x = 5,563.35