Finding the Fourth Proportional to 22,445.59, 30,974.83 and 13,019.53

Step by Step Solution

1. Step 1: Write the proportion equation
   22,445.59 : 30,974.83 = 13,019.53 : x
2. Step 2: Convert to fraction form
   22,445.59/30,974.83 = 13,019.53/x
3. Step 3: Cross multiply
   22,445.59x = 30,974.83 × 13,019.53
4. Step 4: Simplify right side
   22,445.59x = 403,277,728.43
5. Step 5: Solve for x
   x = 403,277,728.43/22,445.59
6. Step 6: Final answer
   x = 17,966.90