Finding the Fourth Proportional to 49,630.50, 68,493.33 and 30,780.18

Step by Step Solution

1. Step 1: Write the proportion equation
   49,630.50 : 68,493.33 = 30,780.18 : x
2. Step 2: Convert to fraction form
   49,630.50/68,493.33 = 30,780.18/x
3. Step 3: Cross multiply
   49,630.50x = 68,493.33 × 30,780.18
4. Step 4: Simplify right side
   49,630.50x = 2,108,237,026.20
5. Step 5: Solve for x
   x = 2,108,237,026.20/49,630.50
6. Step 6: Final answer
   x = 42,478.66