Finding the Fourth Proportional to 11,906.05, 16,429.71 and 6,869.98

Step by Step Solution

1. Step 1: Write the proportion equation
   11,906.05 : 16,429.71 = 6,869.98 : x
2. Step 2: Convert to fraction form
   11,906.05/16,429.71 = 6,869.98/x
3. Step 3: Cross multiply
   11,906.05x = 16,429.71 × 6,869.98
4. Step 4: Simplify right side
   11,906.05x = 112,871,779.11
5. Step 5: Solve for x
   x = 112,871,779.11/11,906.05
6. Step 6: Final answer
   x = 9,480.20