Finding the Fourth Proportional to 43,389.51, 65,092.41 and 19,698.72

Step by Step Solution

1. Step 1: Write the proportion equation
   43,389.51 : 65,092.41 = 19,698.72 : x
2. Step 2: Convert to fraction form
   43,389.51/65,092.41 = 19,698.72/x
3. Step 3: Cross multiply
   43,389.51x = 65,092.41 × 19,698.72
4. Step 4: Simplify right side
   43,389.51x = 1,282,237,097.69
5. Step 5: Solve for x
   x = 1,282,237,097.69/43,389.51
6. Step 6: Final answer
   x = 29,551.78