Finding the Fourth Proportional to 25,443.42, 35,114.29 and 14,688.64

Step by Step Solution

1. Step 1: Write the proportion equation
   25,443.42 : 35,114.29 = 14,688.64 : x
2. Step 2: Convert to fraction form
   25,443.42/35,114.29 = 14,688.64/x
3. Step 3: Cross multiply
   25,443.42x = 35,114.29 × 14,688.64
4. Step 4: Simplify right side
   25,443.42x = 515,781,164.67
5. Step 5: Solve for x
   x = 515,781,164.67/25,443.42
6. Step 6: Final answer
   x = 20,271.69