Finding the Fourth Proportional to 141,208.50, 211,900.29 and 82,072.02

Step by Step Solution

1. Step 1: Write the proportion equation
   141,208.50 : 211,900.29 = 82,072.02 : x
2. Step 2: Convert to fraction form
   141,208.50/211,900.29 = 82,072.02/x
3. Step 3: Cross multiply
   141,208.50x = 211,900.29 × 82,072.02
4. Step 4: Simplify right side
   141,208.50x = 17,391,084,838.89
5. Step 5: Solve for x
   x = 17,391,084,838.89/141,208.50
6. Step 6: Final answer
   x = 123,158.91