Finding the Fourth Proportional to 22,449.84, 30,973.56 and 13,500.72

Step by Step Solution

1. Step 1: Write the proportion equation
   22,449.84 : 30,973.56 = 13,500.72 : x
2. Step 2: Convert to fraction form
   22,449.84/30,973.56 = 13,500.72/x
3. Step 3: Cross multiply
   22,449.84x = 30,973.56 × 13,500.72
4. Step 4: Simplify right side
   22,449.84x = 418,165,360.96
5. Step 5: Solve for x
   x = 418,165,360.96/22,449.84
6. Step 6: Final answer
   x = 18,626.65