Finding the Fourth Proportional to 323,592.41, 485,355.81 and 86,904.34

Step by Step Solution

1. Step 1: Write the proportion equation
   323,592.41 : 485,355.81 = 86,904.34 : x
2. Step 2: Convert to fraction form
   323,592.41/485,355.81 = 86,904.34/x
3. Step 3: Cross multiply
   323,592.41x = 485,355.81 × 86,904.34
4. Step 4: Simplify right side
   323,592.41x = 42,179,526,333.22
5. Step 5: Solve for x
   x = 42,179,526,333.22/323,592.41
6. Step 6: Final answer
   x = 130,347.70