Finding the Fourth Proportional to 74,616.96, 111,890.34 and 30,209.94

Step by Step Solution

1. Step 1: Write the proportion equation
   74,616.96 : 111,890.34 = 30,209.94 : x
2. Step 2: Convert to fraction form
   74,616.96/111,890.34 = 30,209.94/x
3. Step 3: Cross multiply
   74,616.96x = 111,890.34 × 30,209.94
4. Step 4: Simplify right side
   74,616.96x = 3,380,200,457.98
5. Step 5: Solve for x
   x = 3,380,200,457.98/74,616.96
6. Step 6: Final answer
   x = 45,300.70