Finding the Fourth Proportional to 30,488.77, 42,069.48 and 19,150.18

Step by Step Solution

1. Step 1: Write the proportion equation
   30,488.77 : 42,069.48 = 19,150.18 : x
2. Step 2: Convert to fraction form
   30,488.77/42,069.48 = 19,150.18/x
3. Step 3: Cross multiply
   30,488.77x = 42,069.48 × 19,150.18
4. Step 4: Simplify right side
   30,488.77x = 805,638,233.32
5. Step 5: Solve for x
   x = 805,638,233.32/30,488.77
6. Step 6: Final answer
   x = 26,424.10