Finding the Fourth Proportional to 38,783.30, 57,912.22 and 30,796.18

Step by Step Solution

1. Step 1: Write the proportion equation
   38,783.30 : 57,912.22 = 30,796.18 : x
2. Step 2: Convert to fraction form
   38,783.30/57,912.22 = 30,796.18/x
3. Step 3: Cross multiply
   38,783.30x = 57,912.22 × 30,796.18
4. Step 4: Simplify right side
   38,783.30x = 1,783,475,151.32
5. Step 5: Solve for x
   x = 1,783,475,151.32/38,783.30
6. Step 6: Final answer
   x = 45,985.65