Finding the Fourth Proportional to 68,019.98, 102,029.82 and 18,100.05

Step by Step Solution

1. Step 1: Write the proportion equation
   68,019.98 : 102,029.82 = 18,100.05 : x
2. Step 2: Convert to fraction form
   68,019.98/102,029.82 = 18,100.05/x
3. Step 3: Cross multiply
   68,019.98x = 102,029.82 × 18,100.05
4. Step 4: Simplify right side
   68,019.98x = 1,846,744,843.49
5. Step 5: Solve for x
   x = 1,846,744,843.49/68,019.98
6. Step 6: Final answer
   x = 27,150.04