Finding the Fourth Proportional to 25,250.67, 34,846.17 and 13,920.57

Step by Step Solution

1. Step 1: Write the proportion equation
   25,250.67 : 34,846.17 = 13,920.57 : x
2. Step 2: Convert to fraction form
   25,250.67/34,846.17 = 13,920.57/x
3. Step 3: Cross multiply
   25,250.67x = 34,846.17 × 13,920.57
4. Step 4: Simplify right side
   25,250.67x = 485,078,496.51
5. Step 5: Solve for x
   x = 485,078,496.51/25,250.67
6. Step 6: Final answer
   x = 19,210.52