Finding the Fourth Proportional to 323,465.59, 485,131.56 and 86,752

Step by Step Solution

1. Step 1: Write the proportion equation
   323,465.59 : 485,131.56 = 86,752 : x
2. Step 2: Convert to fraction form
   323,465.59/485,131.56 = 86,752/x
3. Step 3: Cross multiply
   323,465.59x = 485,131.56 × 86,752
4. Step 4: Simplify right side
   323,465.59x = 42,086,133,093.12
5. Step 5: Solve for x
   x = 42,086,133,093.12/323,465.59
6. Step 6: Final answer
   x = 130,110.08