Finding the Fourth Proportional to 25,298.16, 34,908.81 and 14,685.72

Step by Step Solution

1. Step 1: Write the proportion equation
   25,298.16 : 34,908.81 = 14,685.72 : x
2. Step 2: Convert to fraction form
   25,298.16/34,908.81 = 14,685.72/x
3. Step 3: Cross multiply
   25,298.16x = 34,908.81 × 14,685.72
4. Step 4: Simplify right side
   25,298.16x = 512,661,009.19
5. Step 5: Solve for x
   x = 512,661,009.19/25,298.16
6. Step 6: Final answer
   x = 20,264.75