Finding the Fourth Proportional to 30,441.25, 42,005.98 and 19,107.12

Step by Step Solution

1. Step 1: Write the proportion equation
   30,441.25 : 42,005.98 = 19,107.12 : x
2. Step 2: Convert to fraction form
   30,441.25/42,005.98 = 19,107.12/x
3. Step 3: Cross multiply
   30,441.25x = 42,005.98 × 19,107.12
4. Step 4: Simplify right side
   30,441.25x = 802,613,300.58
5. Step 5: Solve for x
   x = 802,613,300.58/30,441.25
6. Step 6: Final answer
   x = 26,365.98