Finding the Fourth Proportional to 35,667.78, 49,189.05 and 30,630.42

Step by Step Solution

1. Step 1: Write the proportion equation
   35,667.78 : 49,189.05 = 30,630.42 : x
2. Step 2: Convert to fraction form
   35,667.78/49,189.05 = 30,630.42/x
3. Step 3: Cross multiply
   35,667.78x = 49,189.05 × 30,630.42
4. Step 4: Simplify right side
   35,667.78x = 1,506,681,260.90
5. Step 5: Solve for x
   x = 1,506,681,260.90/35,667.78
6. Step 6: Final answer
   x = 42,242.08