Finding the Fourth Proportional to 69,057.98, 103,592.19 and 19,137.50

Step by Step Solution

1. Step 1: Write the proportion equation
   69,057.98 : 103,592.19 = 19,137.50 : x
2. Step 2: Convert to fraction form
   69,057.98/103,592.19 = 19,137.50/x
3. Step 3: Cross multiply
   69,057.98x = 103,592.19 × 19,137.50
4. Step 4: Simplify right side
   69,057.98x = 1,982,494,922.48
5. Step 5: Solve for x
   x = 1,982,494,922.48/69,057.98
6. Step 6: Final answer
   x = 28,707.69