Finding the Fourth Proportional to 53,105.28, 73,276.71 and 30,440.10

Step by Step Solution

1. Step 1: Write the proportion equation
   53,105.28 : 73,276.71 = 30,440.10 : x
2. Step 2: Convert to fraction form
   53,105.28/73,276.71 = 30,440.10/x
3. Step 3: Cross multiply
   53,105.28x = 73,276.71 × 30,440.10
4. Step 4: Simplify right side
   53,105.28x = 2,230,550,380.07
5. Step 5: Solve for x
   x = 2,230,550,380.07/53,105.28
6. Step 6: Final answer
   x = 42,002.42