Finding the Fourth Proportional to 53,613.93, 73,990.61 and 30,957.10

Step by Step Solution

1. Step 1: Write the proportion equation
   53,613.93 : 73,990.61 = 30,957.10 : x
2. Step 2: Convert to fraction form
   53,613.93/73,990.61 = 30,957.10/x
3. Step 3: Cross multiply
   53,613.93x = 73,990.61 × 30,957.10
4. Step 4: Simplify right side
   53,613.93x = 2,290,534,712.83
5. Step 5: Solve for x
   x = 2,290,534,712.83/53,613.93
6. Step 6: Final answer
   x = 42,722.75