Finding the Fourth Proportional to 7,308.78, 10,086.84 and 4,165.44

Step by Step Solution

1. Step 1: Write the proportion equation
   7,308.78 : 10,086.84 = 4,165.44 : x
2. Step 2: Convert to fraction form
   7,308.78/10,086.84 = 4,165.44/x
3. Step 3: Cross multiply
   7,308.78x = 10,086.84 × 4,165.44
4. Step 4: Simplify right side
   7,308.78x = 42,016,126.81
5. Step 5: Solve for x
   x = 42,016,126.81/7,308.78
6. Step 6: Final answer
   x = 5,748.72