Finding the Fourth Proportional to 72,584.16, 100,168.56 and 40,758.72

Step by Step Solution

1. Step 1: Write the proportion equation
   72,584.16 : 100,168.56 = 40,758.72 : x
2. Step 2: Convert to fraction form
   72,584.16/100,168.56 = 40,758.72/x
3. Step 3: Cross multiply
   72,584.16x = 100,168.56 × 40,758.72
4. Step 4: Simplify right side
   72,584.16x = 4,082,742,289.84
5. Step 5: Solve for x
   x = 4,082,742,289.84/72,584.16
6. Step 6: Final answer
   x = 56,248.39