Finding the Fourth Proportional to 25,059.42, 34,581.58 and 13,728.81

Step by Step Solution

1. Step 1: Write the proportion equation
   25,059.42 : 34,581.58 = 13,728.81 : x
2. Step 2: Convert to fraction form
   25,059.42/34,581.58 = 13,728.81/x
3. Step 3: Cross multiply
   25,059.42x = 34,581.58 × 13,728.81
4. Step 4: Simplify right side
   25,059.42x = 474,763,941.32
5. Step 5: Solve for x
   x = 474,763,941.32/25,059.42
6. Step 6: Final answer
   x = 18,945.53