Finding the Fourth Proportional to 42,740.28, 64,054.68 and 30,933.84

Step by Step Solution

1. Step 1: Write the proportion equation
   42,740.28 : 64,054.68 = 30,933.84 : x
2. Step 2: Convert to fraction form
   42,740.28/64,054.68 = 30,933.84/x
3. Step 3: Cross multiply
   42,740.28x = 64,054.68 × 30,933.84
4. Step 4: Simplify right side
   42,740.28x = 1,981,457,222.37
5. Step 5: Solve for x
   x = 1,981,457,222.37/42,740.28
6. Step 6: Final answer
   x = 46,360.42