Finding the Fourth Proportional to 25,120.23, 34,663.75 and 13,789.69

Step by Step Solution

1. Step 1: Write the proportion equation
   25,120.23 : 34,663.75 = 13,789.69 : x
2. Step 2: Convert to fraction form
   25,120.23/34,663.75 = 13,789.69/x
3. Step 3: Cross multiply
   25,120.23x = 34,663.75 × 13,789.69
4. Step 4: Simplify right side
   25,120.23x = 478,002,245.60
5. Step 5: Solve for x
   x = 478,002,245.60/25,120.23
6. Step 6: Final answer
   x = 19,028.58