Finding the Fourth Proportional to 103,540.98, 142,852.18 and 84,387.82

Step by Step Solution

1. Step 1: Write the proportion equation
   103,540.98 : 142,852.18 = 84,387.82 : x
2. Step 2: Convert to fraction form
   103,540.98/142,852.18 = 84,387.82/x
3. Step 3: Cross multiply
   103,540.98x = 142,852.18 × 84,387.82
4. Step 4: Simplify right side
   103,540.98x = 12,054,984,052.45
5. Step 5: Solve for x
   x = 12,054,984,052.45/103,540.98
6. Step 6: Final answer
   x = 116,427.18