Finding the Fourth Proportional to 10,884.78, 15,016.69 and 7,106.74

Step by Step Solution

1. Step 1: Write the proportion equation
   10,884.78 : 15,016.69 = 7,106.74 : x
2. Step 2: Convert to fraction form
   10,884.78/15,016.69 = 7,106.74/x
3. Step 3: Cross multiply
   10,884.78x = 15,016.69 × 7,106.74
4. Step 4: Simplify right side
   10,884.78x = 106,719,711.49
5. Step 5: Solve for x
   x = 106,719,711.49/10,884.78
6. Step 6: Final answer
   x = 9,804.49