Finding the Fourth Proportional to 25,078.71, 34,609.85 and 13,748.67

Step by Step Solution

1. Step 1: Write the proportion equation
   25,078.71 : 34,609.85 = 13,748.67 : x
2. Step 2: Convert to fraction form
   25,078.71/34,609.85 = 13,748.67/x
3. Step 3: Cross multiply
   25,078.71x = 34,609.85 × 13,748.67
4. Step 4: Simplify right side
   25,078.71x = 475,839,389.21
5. Step 5: Solve for x
   x = 475,839,389.21/25,078.71
6. Step 6: Final answer
   x = 18,973.84