Finding the Fourth Proportional to 11,705.13, 16,149.82 and 6,987.69

Step by Step Solution

1. Step 1: Write the proportion equation
   11,705.13 : 16,149.82 = 6,987.69 : x
2. Step 2: Convert to fraction form
   11,705.13/16,149.82 = 6,987.69/x
3. Step 3: Cross multiply
   11,705.13x = 16,149.82 × 6,987.69
4. Step 4: Simplify right side
   11,705.13x = 112,849,935.72
5. Step 5: Solve for x
   x = 112,849,935.72/11,705.13
6. Step 6: Final answer
   x = 9,641.07