Finding the Fourth Proportional to 25,250.37, 34,845.50 and 13,920.05

Step by Step Solution

1. Step 1: Write the proportion equation
   25,250.37 : 34,845.50 = 13,920.05 : x
2. Step 2: Convert to fraction form
   25,250.37/34,845.50 = 13,920.05/x
3. Step 3: Cross multiply
   25,250.37x = 34,845.50 × 13,920.05
4. Step 4: Simplify right side
   25,250.37x = 485,051,102.28
5. Step 5: Solve for x
   x = 485,051,102.28/25,250.37
6. Step 6: Final answer
   x = 19,209.66