Finding the Fourth Proportional to 25,958.50, 35,822.78 and 14,780.50

Step by Step Solution

1. Step 1: Write the proportion equation
   25,958.50 : 35,822.78 = 14,780.50 : x
2. Step 2: Convert to fraction form
   25,958.50/35,822.78 = 14,780.50/x
3. Step 3: Cross multiply
   25,958.50x = 35,822.78 × 14,780.50
4. Step 4: Simplify right side
   25,958.50x = 529,478,599.79
5. Step 5: Solve for x
   x = 529,478,599.79/25,958.50
6. Step 6: Final answer
   x = 20,397.12