Finding the Fourth Proportional to 39,100.09, 53,923.26 and 30,488.38

Step by Step Solution

1. Step 1: Write the proportion equation
   39,100.09 : 53,923.26 = 30,488.38 : x
2. Step 2: Convert to fraction form
   39,100.09/53,923.26 = 30,488.38/x
3. Step 3: Cross multiply
   39,100.09x = 53,923.26 × 30,488.38
4. Step 4: Simplify right side
   39,100.09x = 1,644,032,841.72
5. Step 5: Solve for x
   x = 1,644,032,841.72/39,100.09
6. Step 6: Final answer
   x = 42,046.78