Finding the Fourth Proportional to 12,706.20, 19,052.37 and 3,820.23

Step by Step Solution

1. Step 1: Write the proportion equation
   12,706.20 : 19,052.37 = 3,820.23 : x
2. Step 2: Convert to fraction form
   12,706.20/19,052.37 = 3,820.23/x
3. Step 3: Cross multiply
   12,706.20x = 19,052.37 × 3,820.23
4. Step 4: Simplify right side
   12,706.20x = 72,784,435.45
5. Step 5: Solve for x
   x = 72,784,435.45/12,706.20
6. Step 6: Final answer
   x = 5,728.26