Finding the Fourth Proportional to 53,406.72, 73,707.84 and 31,050.72

Step by Step Solution

1. Step 1: Write the proportion equation
   53,406.72 : 73,707.84 = 31,050.72 : x
2. Step 2: Convert to fraction form
   53,406.72/73,707.84 = 31,050.72/x
3. Step 3: Cross multiply
   53,406.72x = 73,707.84 × 31,050.72
4. Step 4: Simplify right side
   53,406.72x = 2,288,681,501.64
5. Step 5: Solve for x
   x = 2,288,681,501.64/53,406.72
6. Step 6: Final answer
   x = 42,853.81