Finding the Fourth Proportional to 16,667.63, 25,013.75 and 7,902.57

Step by Step Solution

1. Step 1: Write the proportion equation
   16,667.63 : 25,013.75 = 7,902.57 : x
2. Step 2: Convert to fraction form
   16,667.63/25,013.75 = 7,902.57/x
3. Step 3: Cross multiply
   16,667.63x = 25,013.75 × 7,902.57
4. Step 4: Simplify right side
   16,667.63x = 197,672,870.82
5. Step 5: Solve for x
   x = 197,672,870.82/16,667.63
6. Step 6: Final answer
   x = 11,859.69