Finding the Fourth Proportional to 30,910.05, 42,623.82 and 26,448.57

Step by Step Solution

1. Step 1: Write the proportion equation
   30,910.05 : 42,623.82 = 26,448.57 : x
2. Step 2: Convert to fraction form
   30,910.05/42,623.82 = 26,448.57/x
3. Step 3: Cross multiply
   30,910.05x = 42,623.82 × 26,448.57
4. Step 4: Simplify right side
   30,910.05x = 1,127,339,086.94
5. Step 5: Solve for x
   x = 1,127,339,086.94/30,910.05
6. Step 6: Final answer
   x = 36,471.60