Finding the Fourth Proportional to 25,156.39, 34,716.45 and 13,826.17

Step by Step Solution

1. Step 1: Write the proportion equation
   25,156.39 : 34,716.45 = 13,826.17 : x
2. Step 2: Convert to fraction form
   25,156.39/34,716.45 = 13,826.17/x
3. Step 3: Cross multiply
   25,156.39x = 34,716.45 × 13,826.17
4. Step 4: Simplify right side
   25,156.39x = 479,995,459.33
5. Step 5: Solve for x
   x = 479,995,459.33/25,156.39
6. Step 6: Final answer
   x = 19,080.46