Finding the Fourth Proportional to 10,993.14, 16,488.50 and 7,902.18

Step by Step Solution

1. Step 1: Write the proportion equation
   10,993.14 : 16,488.50 = 7,902.18 : x
2. Step 2: Convert to fraction form
   10,993.14/16,488.50 = 7,902.18/x
3. Step 3: Cross multiply
   10,993.14x = 16,488.50 × 7,902.18
4. Step 4: Simplify right side
   10,993.14x = 130,295,055.42
5. Step 5: Solve for x
   x = 130,295,055.42/10,993.14
6. Step 6: Final answer
   x = 11,852.40