Finding the Fourth Proportional to 15,765.82, 21,757.76 and 9,051.46

Step by Step Solution

1. Step 1: Write the proportion equation
   15,765.82 : 21,757.76 = 9,051.46 : x
2. Step 2: Convert to fraction form
   15,765.82/21,757.76 = 9,051.46/x
3. Step 3: Cross multiply
   15,765.82x = 21,757.76 × 9,051.46
4. Step 4: Simplify right side
   15,765.82x = 196,939,494.33
5. Step 5: Solve for x
   x = 196,939,494.33/15,765.82
6. Step 6: Final answer
   x = 12,491.55