Finding the Fourth Proportional to 73,960.72, 102,065.88 and 40,426.72

Step by Step Solution

1. Step 1: Write the proportion equation
   73,960.72 : 102,065.88 = 40,426.72 : x
2. Step 2: Convert to fraction form
   73,960.72/102,065.88 = 40,426.72/x
3. Step 3: Cross multiply
   73,960.72x = 102,065.88 × 40,426.72
4. Step 4: Simplify right side
   73,960.72x = 4,126,188,752.31
5. Step 5: Solve for x
   x = 4,126,188,752.31/73,960.72
6. Step 6: Final answer
   x = 55,788.92