Finding the Fourth Proportional to 81,469.83, 122,047.12 and 45,822.84

Step by Step Solution

1. Step 1: Write the proportion equation
   81,469.83 : 122,047.12 = 45,822.84 : x
2. Step 2: Convert to fraction form
   81,469.83/122,047.12 = 45,822.84/x
3. Step 3: Cross multiply
   81,469.83x = 122,047.12 × 45,822.84
4. Step 4: Simplify right side
   81,469.83x = 5,592,546,195.78
5. Step 5: Solve for x
   x = 5,592,546,195.78/81,469.83
6. Step 6: Final answer
   x = 68,645.61