Finding the Fourth Proportional to 11,892.51, 16,411.73 and 7,708.05

Step by Step Solution

1. Step 1: Write the proportion equation
   11,892.51 : 16,411.73 = 7,708.05 : x
2. Step 2: Convert to fraction form
   11,892.51/16,411.73 = 7,708.05/x
3. Step 3: Cross multiply
   11,892.51x = 16,411.73 × 7,708.05
4. Step 4: Simplify right side
   11,892.51x = 126,502,396.89
5. Step 5: Solve for x
   x = 126,502,396.89/11,892.51
6. Step 6: Final answer
   x = 10,637.15