Finding the Fourth Proportional to 25,735.98, 38,609.38 and 8,870.53

Step by Step Solution

1. Step 1: Write the proportion equation
   25,735.98 : 38,609.38 = 8,870.53 : x
2. Step 2: Convert to fraction form
   25,735.98/38,609.38 = 8,870.53/x
3. Step 3: Cross multiply
   25,735.98x = 38,609.38 × 8,870.53
4. Step 4: Simplify right side
   25,735.98x = 342,485,456.46
5. Step 5: Solve for x
   x = 342,485,456.46/25,735.98
6. Step 6: Final answer
   x = 13,307.65