Finding the Fourth Proportional to 142,385.75, 213,910.82 and 83,263.04

Step by Step Solution

1. Step 1: Write the proportion equation
   142,385.75 : 213,910.82 = 83,263.04 : x
2. Step 2: Convert to fraction form
   142,385.75/213,910.82 = 83,263.04/x
3. Step 3: Cross multiply
   142,385.75x = 213,910.82 × 83,263.04
4. Step 4: Simplify right side
   142,385.75x = 17,810,863,676.22
5. Step 5: Solve for x
   x = 17,810,863,676.22/142,385.75
6. Step 6: Final answer
   x = 125,088.81