Finding the Fourth Proportional to 53,105.85, 73,277.50 and 30,440.67

Step by Step Solution

1. Step 1: Write the proportion equation
   53,105.85 : 73,277.50 = 30,440.67 : x
2. Step 2: Convert to fraction form
   53,105.85/73,277.50 = 30,440.67/x
3. Step 3: Cross multiply
   53,105.85x = 73,277.50 × 30,440.67
4. Step 4: Simplify right side
   53,105.85x = 2,230,616,043.72
5. Step 5: Solve for x
   x = 2,230,616,043.72/53,105.85
6. Step 6: Final answer
   x = 42,003.21