Finding the Fourth Proportional to 67,970.35, 101,872.23 and 30,520.81

Step by Step Solution

1. Step 1: Write the proportion equation
   67,970.35 : 101,872.23 = 30,520.81 : x
2. Step 2: Convert to fraction form
   67,970.35/101,872.23 = 30,520.81/x
3. Step 3: Cross multiply
   67,970.35x = 101,872.23 × 30,520.81
4. Step 4: Simplify right side
   67,970.35x = 3,109,222,976.11
5. Step 5: Solve for x
   x = 3,109,222,976.11/67,970.35
6. Step 6: Final answer
   x = 45,743.81