Finding the Fourth Proportional to 141,205.72, 211,857.18 and 88,553.56

Step by Step Solution

1. Step 1: Write the proportion equation
   141,205.72 : 211,857.18 = 88,553.56 : x
2. Step 2: Convert to fraction form
   141,205.72/211,857.18 = 88,553.56/x
3. Step 3: Cross multiply
   141,205.72x = 211,857.18 × 88,553.56
4. Step 4: Simplify right side
   141,205.72x = 18,760,707,500.56
5. Step 5: Solve for x
   x = 18,760,707,500.56/141,205.72
6. Step 6: Final answer
   x = 132,860.82