Finding the Fourth Proportional to 30,879.33, 42,618.56 and 23,313.83

Step by Step Solution

1. Step 1: Write the proportion equation
   30,879.33 : 42,618.56 = 23,313.83 : x
2. Step 2: Convert to fraction form
   30,879.33/42,618.56 = 23,313.83/x
3. Step 3: Cross multiply
   30,879.33x = 42,618.56 × 23,313.83
4. Step 4: Simplify right side
   30,879.33x = 993,601,533.02
5. Step 5: Solve for x
   x = 993,601,533.02/30,879.33
6. Step 6: Final answer
   x = 32,176.92