Finding the Fourth Proportional to 5,443.86, 7,512.30 and 3,086.16

Step by Step Solution

1. Step 1: Write the proportion equation
   5,443.86 : 7,512.30 = 3,086.16 : x
2. Step 2: Convert to fraction form
   5,443.86/7,512.30 = 3,086.16/x
3. Step 3: Cross multiply
   5,443.86x = 7,512.30 × 3,086.16
4. Step 4: Simplify right side
   5,443.86x = 23,184,159.77
5. Step 5: Solve for x
   x = 23,184,159.77/5,443.86
6. Step 6: Final answer
   x = 4,258.77