Finding the Fourth Proportional to 30,857, 42,550.80 and 26,395.52

Step by Step Solution

1. Step 1: Write the proportion equation
   30,857 : 42,550.80 = 26,395.52 : x
2. Step 2: Convert to fraction form
   30,857/42,550.80 = 26,395.52/x
3. Step 3: Cross multiply
   30,857x = 42,550.80 × 26,395.52
4. Step 4: Simplify right side
   30,857x = 1,123,150,492.42
5. Step 5: Solve for x
   x = 1,123,150,492.42/30,857
6. Step 6: Final answer
   x = 36,398.56