Finding the Fourth Proportional to 10,765.76, 16,054.43 and 10,667.34

Step by Step Solution

1. Step 1: Write the proportion equation
   10,765.76 : 16,054.43 = 10,667.34 : x
2. Step 2: Convert to fraction form
   10,765.76/16,054.43 = 10,667.34/x
3. Step 3: Cross multiply
   10,765.76x = 16,054.43 × 10,667.34
4. Step 4: Simplify right side
   10,765.76x = 171,258,009.98
5. Step 5: Solve for x
   x = 171,258,009.98/10,765.76
6. Step 6: Final answer
   x = 15,907.66