Finding the Fourth Proportional to 53,168.72, 73,370.58 and 30,491.96

Step by Step Solution

1. Step 1: Write the proportion equation
   53,168.72 : 73,370.58 = 30,491.96 : x
2. Step 2: Convert to fraction form
   53,168.72/73,370.58 = 30,491.96/x
3. Step 3: Cross multiply
   53,168.72x = 73,370.58 × 30,491.96
4. Step 4: Simplify right side
   53,168.72x = 2,237,212,790.54
5. Step 5: Solve for x
   x = 2,237,212,790.54/53,168.72
6. Step 6: Final answer
   x = 42,077.61