Finding the Fourth Proportional to 25,111.70, 34,654.19 and 13,782.18

Step by Step Solution

1. Step 1: Write the proportion equation
   25,111.70 : 34,654.19 = 13,782.18 : x
2. Step 2: Convert to fraction form
   25,111.70/34,654.19 = 13,782.18/x
3. Step 3: Cross multiply
   25,111.70x = 34,654.19 × 13,782.18
4. Step 4: Simplify right side
   25,111.70x = 477,610,215.42
5. Step 5: Solve for x
   x = 477,610,215.42/25,111.70
6. Step 6: Final answer
   x = 19,019.43