Finding the Fourth Proportional to 53,456.15, 73,777.29 and 30,790.73

Step by Step Solution

1. Step 1: Write the proportion equation
   53,456.15 : 73,777.29 = 30,790.73 : x
2. Step 2: Convert to fraction form
   53,456.15/73,777.29 = 30,790.73/x
3. Step 3: Cross multiply
   53,456.15x = 73,777.29 × 30,790.73
4. Step 4: Simplify right side
   53,456.15x = 2,271,656,616.52
5. Step 5: Solve for x
   x = 2,271,656,616.52/53,456.15
6. Step 6: Final answer
   x = 42,495.70