Finding the Fourth Proportional to 53,308.96, 73,542 and 30,940

Step by Step Solution

1. Step 1: Write the proportion equation
   53,308.96 : 73,542 = 30,940 : x
2. Step 2: Convert to fraction form
   53,308.96/73,542 = 30,940/x
3. Step 3: Cross multiply
   53,308.96x = 73,542 × 30,940
4. Step 4: Simplify right side
   53,308.96x = 2,275,389,480
5. Step 5: Solve for x
   x = 2,275,389,480/53,308.96
6. Step 6: Final answer
   x = 42,683.06