Finding the Fourth Proportional to 5,929.76, 8,159.46 and 5,749.40

Step by Step Solution

1. Step 1: Write the proportion equation
   5,929.76 : 8,159.46 = 5,749.40 : x
2. Step 2: Convert to fraction form
   5,929.76/8,159.46 = 5,749.40/x
3. Step 3: Cross multiply
   5,929.76x = 8,159.46 × 5,749.40
4. Step 4: Simplify right side
   5,929.76x = 46,911,999.32
5. Step 5: Solve for x
   x = 46,911,999.32/5,929.76
6. Step 6: Final answer
   x = 7,911.28