Finding the Fourth Proportional to 10,447.69, 14,419.94 and 7,091.59

Step by Step Solution

1. Step 1: Write the proportion equation
   10,447.69 : 14,419.94 = 7,091.59 : x
2. Step 2: Convert to fraction form
   10,447.69/14,419.94 = 7,091.59/x
3. Step 3: Cross multiply
   10,447.69x = 14,419.94 × 7,091.59
4. Step 4: Simplify right side
   10,447.69x = 102,260,297.72
5. Step 5: Solve for x
   x = 102,260,297.72/10,447.69
6. Step 6: Final answer
   x = 9,787.84