Finding the Fourth Proportional to 25,685.72, 35,444.58 and 14,507

Step by Step Solution

1. Step 1: Write the proportion equation
   25,685.72 : 35,444.58 = 14,507 : x
2. Step 2: Convert to fraction form
   25,685.72/35,444.58 = 14,507/x
3. Step 3: Cross multiply
   25,685.72x = 35,444.58 × 14,507
4. Step 4: Simplify right side
   25,685.72x = 514,194,522.06
5. Step 5: Solve for x
   x = 514,194,522.06/25,685.72
6. Step 6: Final answer
   x = 20,018.69