Finding the Fourth Proportional to 11,670.78, 16,106.31 and 7,486.14

Step by Step Solution

1. Step 1: Write the proportion equation
   11,670.78 : 16,106.31 = 7,486.14 : x
2. Step 2: Convert to fraction form
   11,670.78/16,106.31 = 7,486.14/x
3. Step 3: Cross multiply
   11,670.78x = 16,106.31 × 7,486.14
4. Step 4: Simplify right side
   11,670.78x = 120,574,091.54
5. Step 5: Solve for x
   x = 120,574,091.54/11,670.78
6. Step 6: Final answer
   x = 10,331.28