Finding the Fourth Proportional to 51,168.60, 76,650.72 and 40,656.42

Step by Step Solution

1. Step 1: Write the proportion equation
   51,168.60 : 76,650.72 = 40,656.42 : x
2. Step 2: Convert to fraction form
   51,168.60/76,650.72 = 40,656.42/x
3. Step 3: Cross multiply
   51,168.60x = 76,650.72 × 40,656.42
4. Step 4: Simplify right side
   51,168.60x = 3,116,343,865.62
5. Step 5: Solve for x
   x = 3,116,343,865.62/51,168.60
6. Step 6: Final answer
   x = 60,903.44