Finding the Fourth Proportional to 69,439.82, 104,159.25 and 19,519.61

Step by Step Solution

1. Step 1: Write the proportion equation
   69,439.82 : 104,159.25 = 19,519.61 : x
2. Step 2: Convert to fraction form
   69,439.82/104,159.25 = 19,519.61/x
3. Step 3: Cross multiply
   69,439.82x = 104,159.25 × 19,519.61
4. Step 4: Simplify right side
   69,439.82x = 2,033,147,417.10
5. Step 5: Solve for x
   x = 2,033,147,417.10/69,439.82
6. Step 6: Final answer
   x = 29,279.27