Finding the Fourth Proportional to 11,993.13, 17,975.34 and 8,477.82

Step by Step Solution

1. Step 1: Write the proportion equation
   11,993.13 : 17,975.34 = 8,477.82 : x
2. Step 2: Convert to fraction form
   11,993.13/17,975.34 = 8,477.82/x
3. Step 3: Cross multiply
   11,993.13x = 17,975.34 × 8,477.82
4. Step 4: Simplify right side
   11,993.13x = 152,391,696.96
5. Step 5: Solve for x
   x = 152,391,696.96/11,993.13
6. Step 6: Final answer
   x = 12,706.58