Finding the Fourth Proportional to 10,654.94, 15,961.52 and 8,783.51

Step by Step Solution

1. Step 1: Write the proportion equation
   10,654.94 : 15,961.52 = 8,783.51 : x
2. Step 2: Convert to fraction form
   10,654.94/15,961.52 = 8,783.51/x
3. Step 3: Cross multiply
   10,654.94x = 15,961.52 × 8,783.51
4. Step 4: Simplify right side
   10,654.94x = 140,198,112.69
5. Step 5: Solve for x
   x = 140,198,112.69/10,654.94
6. Step 6: Final answer
   x = 13,158.04