Finding the Fourth Proportional to 10,897.94, 16,346.82 and 3,106.78

Step by Step Solution

1. Step 1: Write the proportion equation
   10,897.94 : 16,346.82 = 3,106.78 : x
2. Step 2: Convert to fraction form
   10,897.94/16,346.82 = 3,106.78/x
3. Step 3: Cross multiply
   10,897.94x = 16,346.82 × 3,106.78
4. Step 4: Simplify right side
   10,897.94x = 50,785,973.44
5. Step 5: Solve for x
   x = 50,785,973.44/10,897.94
6. Step 6: Final answer
   x = 4,660.14