Finding the Fourth Proportional to 65,392.72, 98,089.98 and 18,645.59

Step by Step Solution

1. Step 1: Write the proportion equation
   65,392.72 : 98,089.98 = 18,645.59 : x
2. Step 2: Convert to fraction form
   65,392.72/98,089.98 = 18,645.59/x
3. Step 3: Cross multiply
   65,392.72x = 98,089.98 × 18,645.59
4. Step 4: Simplify right side
   65,392.72x = 1,828,945,795.41
5. Step 5: Solve for x
   x = 1,828,945,795.41/65,392.72
6. Step 6: Final answer
   x = 27,968.65