Finding the Fourth Proportional to 25,315.75, 34,935.59 and 13,986.02

Step by Step Solution

1. Step 1: Write the proportion equation
   25,315.75 : 34,935.59 = 13,986.02 : x
2. Step 2: Convert to fraction form
   25,315.75/34,935.59 = 13,986.02/x
3. Step 3: Cross multiply
   25,315.75x = 34,935.59 × 13,986.02
4. Step 4: Simplify right side
   25,315.75x = 488,609,982.76
5. Step 5: Solve for x
   x = 488,609,982.76/25,315.75
6. Step 6: Final answer
   x = 19,300.63