Finding the Fourth Proportional to 11,796.60, 16,284.42 and 7,810.68

Step by Step Solution

1. Step 1: Write the proportion equation
   11,796.60 : 16,284.42 = 7,810.68 : x
2. Step 2: Convert to fraction form
   11,796.60/16,284.42 = 7,810.68/x
3. Step 3: Cross multiply
   11,796.60x = 16,284.42 × 7,810.68
4. Step 4: Simplify right side
   11,796.60x = 127,192,393.61
5. Step 5: Solve for x
   x = 127,192,393.61/11,796.60
6. Step 6: Final answer
   x = 10,782.12