Finding the Fourth Proportional to 51,168.51, 76,621.55 and 43,295.31

Step by Step Solution

1. Step 1: Write the proportion equation
   51,168.51 : 76,621.55 = 43,295.31 : x
2. Step 2: Convert to fraction form
   51,168.51/76,621.55 = 43,295.31/x
3. Step 3: Cross multiply
   51,168.51x = 76,621.55 × 43,295.31
4. Step 4: Simplify right side
   51,168.51x = 3,317,353,543.45
5. Step 5: Solve for x
   x = 3,317,353,543.45/51,168.51
6. Step 6: Final answer
   x = 64,831.94