Finding the Fourth Proportional to 259,003.98, 388,558.67 and 109,244.80

Step by Step Solution

1. Step 1: Write the proportion equation
   259,003.98 : 388,558.67 = 109,244.80 : x
2. Step 2: Convert to fraction form
   259,003.98/388,558.67 = 109,244.80/x
3. Step 3: Cross multiply
   259,003.98x = 388,558.67 × 109,244.80
4. Step 4: Simplify right side
   259,003.98x = 42,448,014,746.39
5. Step 5: Solve for x
   x = 42,448,014,746.39/259,003.98
6. Step 6: Final answer
   x = 163,889.43