Finding the Fourth Proportional to 42,668.64, 63,910.52 and 30,956

Step by Step Solution

1. Step 1: Write the proportion equation
   42,668.64 : 63,910.52 = 30,956 : x
2. Step 2: Convert to fraction form
   42,668.64/63,910.52 = 30,956/x
3. Step 3: Cross multiply
   42,668.64x = 63,910.52 × 30,956
4. Step 4: Simplify right side
   42,668.64x = 1,978,414,057.12
5. Step 5: Solve for x
   x = 1,978,414,057.12/42,668.64
6. Step 6: Final answer
   x = 46,366.93