Finding the Fourth Proportional to 12,436.69, 17,174.03 and 7,900.83

Step by Step Solution

1. Step 1: Write the proportion equation
   12,436.69 : 17,174.03 = 7,900.83 : x
2. Step 2: Convert to fraction form
   12,436.69/17,174.03 = 7,900.83/x
3. Step 3: Cross multiply
   12,436.69x = 17,174.03 × 7,900.83
4. Step 4: Simplify right side
   12,436.69x = 135,689,166.91
5. Step 5: Solve for x
   x = 135,689,166.91/12,436.69
6. Step 6: Final answer
   x = 10,910.39