Finding the Fourth Proportional to 30,879.30, 42,613.56 and 16,732.14

Step by Step Solution

1. Step 1: Write the proportion equation
   30,879.30 : 42,613.56 = 16,732.14 : x
2. Step 2: Convert to fraction form
   30,879.30/42,613.56 = 16,732.14/x
3. Step 3: Cross multiply
   30,879.30x = 42,613.56 × 16,732.14
4. Step 4: Simplify right side
   30,879.30x = 713,016,051.82
5. Step 5: Solve for x
   x = 713,016,051.82/30,879.30
6. Step 6: Final answer
   x = 23,090.42