Finding the Fourth Proportional to 25,078.31, 34,601.06 and 19,756.61

Step by Step Solution

1. Step 1: Write the proportion equation
   25,078.31 : 34,601.06 = 19,756.61 : x
2. Step 2: Convert to fraction form
   25,078.31/34,601.06 = 19,756.61/x
3. Step 3: Cross multiply
   25,078.31x = 34,601.06 × 19,756.61
4. Step 4: Simplify right side
   25,078.31x = 683,599,524.39
5. Step 5: Solve for x
   x = 683,599,524.39/25,078.31
6. Step 6: Final answer
   x = 27,258.60