Finding the Fourth Proportional to 11,906.02, 16,429.51 and 6,870.45

Step by Step Solution

1. Step 1: Write the proportion equation
   11,906.02 : 16,429.51 = 6,870.45 : x
2. Step 2: Convert to fraction form
   11,906.02/16,429.51 = 6,870.45/x
3. Step 3: Cross multiply
   11,906.02x = 16,429.51 × 6,870.45
4. Step 4: Simplify right side
   11,906.02x = 112,878,092.63
5. Step 5: Solve for x
   x = 112,878,092.63/11,906.02
6. Step 6: Final answer
   x = 9,480.76