Finding the Fourth Proportional to 30,569.02, 42,194.25 and 19,960.30

Step by Step Solution

1. Step 1: Write the proportion equation
   30,569.02 : 42,194.25 = 19,960.30 : x
2. Step 2: Convert to fraction form
   30,569.02/42,194.25 = 19,960.30/x
3. Step 3: Cross multiply
   30,569.02x = 42,194.25 × 19,960.30
4. Step 4: Simplify right side
   30,569.02x = 842,209,888.28
5. Step 5: Solve for x
   x = 842,209,888.28/30,569.02
6. Step 6: Final answer
   x = 27,551.09