Finding the Fourth Proportional to 25,465, 35,141.70 and 14,286.76

Step by Step Solution

1. Step 1: Write the proportion equation
   25,465 : 35,141.70 = 14,286.76 : x
2. Step 2: Convert to fraction form
   25,465/35,141.70 = 14,286.76/x
3. Step 3: Cross multiply
   25,465x = 35,141.70 × 14,286.76
4. Step 4: Simplify right side
   25,465x = 502,061,033.89
5. Step 5: Solve for x
   x = 502,061,033.89/25,465
6. Step 6: Final answer
   x = 19,715.73