Finding the Fourth Proportional to 10,654.64, 16,043.78 and 7,900.82

Step by Step Solution

1. Step 1: Write the proportion equation
   10,654.64 : 16,043.78 = 7,900.82 : x
2. Step 2: Convert to fraction form
   10,654.64/16,043.78 = 7,900.82/x
3. Step 3: Cross multiply
   10,654.64x = 16,043.78 × 7,900.82
4. Step 4: Simplify right side
   10,654.64x = 126,759,017.90
5. Step 5: Solve for x
   x = 126,759,017.90/10,654.64
6. Step 6: Final answer
   x = 11,897.07