Finding the Fourth Proportional to 12,802.41, 17,661.83 and 7,764.71

Step by Step Solution

1. Step 1: Write the proportion equation
   12,802.41 : 17,661.83 = 7,764.71 : x
2. Step 2: Convert to fraction form
   12,802.41/17,661.83 = 7,764.71/x
3. Step 3: Cross multiply
   12,802.41x = 17,661.83 × 7,764.71
4. Step 4: Simplify right side
   12,802.41x = 137,138,860.89
5. Step 5: Solve for x
   x = 137,138,860.89/12,802.41
6. Step 6: Final answer
   x = 10,711.96