Finding the Fourth Proportional to 53,112.96, 73,284.12 and 30,744

Step by Step Solution

1. Step 1: Write the proportion equation
   53,112.96 : 73,284.12 = 30,744 : x
2. Step 2: Convert to fraction form
   53,112.96/73,284.12 = 30,744/x
3. Step 3: Cross multiply
   53,112.96x = 73,284.12 × 30,744
4. Step 4: Simplify right side
   53,112.96x = 2,253,046,985.28
5. Step 5: Solve for x
   x = 2,253,046,985.28/53,112.96
6. Step 6: Final answer
   x = 42,419.91