Finding the Fourth Proportional to 25,185.47, 34,756.03 and 13,856.13

Step by Step Solution

1. Step 1: Write the proportion equation
   25,185.47 : 34,756.03 = 13,856.13 : x
2. Step 2: Convert to fraction form
   25,185.47/34,756.03 = 13,856.13/x
3. Step 3: Cross multiply
   25,185.47x = 34,756.03 × 13,856.13
4. Step 4: Simplify right side
   25,185.47x = 481,584,035.32
5. Step 5: Solve for x
   x = 481,584,035.32/25,185.47
6. Step 6: Final answer
   x = 19,121.50