Finding the Fourth Proportional to 11,978.37, 16,530.33 and 6,942.95

Step by Step Solution

1. Step 1: Write the proportion equation
   11,978.37 : 16,530.33 = 6,942.95 : x
2. Step 2: Convert to fraction form
   11,978.37/16,530.33 = 6,942.95/x
3. Step 3: Cross multiply
   11,978.37x = 16,530.33 × 6,942.95
4. Step 4: Simplify right side
   11,978.37x = 114,769,172.02
5. Step 5: Solve for x
   x = 114,769,172.02/11,978.37
6. Step 6: Final answer
   x = 9,581.37