Finding the Fourth Proportional to 30,469.55, 45,698.72 and 13,825.58

Step by Step Solution

1. Step 1: Write the proportion equation
   30,469.55 : 45,698.72 = 13,825.58 : x
2. Step 2: Convert to fraction form
   30,469.55/45,698.72 = 13,825.58/x
3. Step 3: Cross multiply
   30,469.55x = 45,698.72 × 13,825.58
4. Step 4: Simplify right side
   30,469.55x = 631,811,011.64
5. Step 5: Solve for x
   x = 631,811,011.64/30,469.55
6. Step 6: Final answer
   x = 20,735.82