Finding the Fourth Proportional to 82,514.90, 123,661.49 and 45,018.79

Step by Step Solution

1. Step 1: Write the proportion equation
   82,514.90 : 123,661.49 = 45,018.79 : x
2. Step 2: Convert to fraction form
   82,514.90/123,661.49 = 45,018.79/x
3. Step 3: Cross multiply
   82,514.90x = 123,661.49 × 45,018.79
4. Step 4: Simplify right side
   82,514.90x = 5,567,090,115.15
5. Step 5: Solve for x
   x = 5,567,090,115.15/82,514.90
6. Step 6: Final answer
   x = 67,467.69