Finding the Fourth Proportional to 69,074.61, 103,601.61 and 19,149.50

Step by Step Solution

1. Step 1: Write the proportion equation
   69,074.61 : 103,601.61 = 19,149.50 : x
2. Step 2: Convert to fraction form
   69,074.61/103,601.61 = 19,149.50/x
3. Step 3: Cross multiply
   69,074.61x = 103,601.61 × 19,149.50
4. Step 4: Simplify right side
   69,074.61x = 1,983,918,512.69
5. Step 5: Solve for x
   x = 1,983,918,512.69/69,074.61
6. Step 6: Final answer
   x = 28,721.39