Finding the Fourth Proportional to 56,582.15, 78,083.04 and 30,740.48

Step by Step Solution

1. Step 1: Write the proportion equation
   56,582.15 : 78,083.04 = 30,740.48 : x
2. Step 2: Convert to fraction form
   56,582.15/78,083.04 = 30,740.48/x
3. Step 3: Cross multiply
   56,582.15x = 78,083.04 × 30,740.48
4. Step 4: Simplify right side
   56,582.15x = 2,400,309,739.04
5. Step 5: Solve for x
   x = 2,400,309,739.04/56,582.15
6. Step 6: Final answer
   x = 42,421.68