Finding the Fourth Proportional to 25,321.91, 34,941.25 and 13,990.73

Step by Step Solution

1. Step 1: Write the proportion equation
   25,321.91 : 34,941.25 = 13,990.73 : x
2. Step 2: Convert to fraction form
   25,321.91/34,941.25 = 13,990.73/x
3. Step 3: Cross multiply
   25,321.91x = 34,941.25 × 13,990.73
4. Step 4: Simplify right side
   25,321.91x = 488,853,594.61
5. Step 5: Solve for x
   x = 488,853,594.61/25,321.91
6. Step 6: Final answer
   x = 19,305.56