Finding the Fourth Proportional to 43,488.03, 65,224.17 and 19,789.98

Step by Step Solution

1. Step 1: Write the proportion equation
   43,488.03 : 65,224.17 = 19,789.98 : x
2. Step 2: Convert to fraction form
   43,488.03/65,224.17 = 19,789.98/x
3. Step 3: Cross multiply
   43,488.03x = 65,224.17 × 19,789.98
4. Step 4: Simplify right side
   43,488.03x = 1,290,785,019.82
5. Step 5: Solve for x
   x = 1,290,785,019.82/43,488.03
6. Step 6: Final answer
   x = 29,681.39