Finding the Fourth Proportional to 30,810.09, 42,518.52 and 17,378.70

Step by Step Solution

1. Step 1: Write the proportion equation
   30,810.09 : 42,518.52 = 17,378.70 : x
2. Step 2: Convert to fraction form
   30,810.09/42,518.52 = 17,378.70/x
3. Step 3: Cross multiply
   30,810.09x = 42,518.52 × 17,378.70
4. Step 4: Simplify right side
   30,810.09x = 738,916,603.52
5. Step 5: Solve for x
   x = 738,916,603.52/30,810.09
6. Step 6: Final answer
   x = 23,982.94