Finding the Fourth Proportional to 11,956.69, 16,503.93 and 7,707.76

Step by Step Solution

1. Step 1: Write the proportion equation
   11,956.69 : 16,503.93 = 7,707.76 : x
2. Step 2: Convert to fraction form
   11,956.69/16,503.93 = 7,707.76/x
3. Step 3: Cross multiply
   11,956.69x = 16,503.93 × 7,707.76
4. Step 4: Simplify right side
   11,956.69x = 127,208,268.56
5. Step 5: Solve for x
   x = 127,208,268.56/11,956.69
6. Step 6: Final answer
   x = 10,639.09