Finding the Fourth Proportional to 322,186.48, 483,300.78 and 85,522.84

Step by Step Solution

1. Step 1: Write the proportion equation
   322,186.48 : 483,300.78 = 85,522.84 : x
2. Step 2: Convert to fraction form
   322,186.48/483,300.78 = 85,522.84/x
3. Step 3: Cross multiply
   322,186.48x = 483,300.78 × 85,522.84
4. Step 4: Simplify right side
   322,186.48x = 41,333,255,279.82
5. Step 5: Solve for x
   x = 41,333,255,279.82/322,186.48
6. Step 6: Final answer
   x = 128,289.85