Finding the Fourth Proportional to 323,684.10, 485,525.34 and 87,026.76

Step by Step Solution

1. Step 1: Write the proportion equation
   323,684.10 : 485,525.34 = 87,026.76 : x
2. Step 2: Convert to fraction form
   323,684.10/485,525.34 = 87,026.76/x
3. Step 3: Cross multiply
   323,684.10x = 485,525.34 × 87,026.76
4. Step 4: Simplify right side
   323,684.10x = 42,253,697,238.10
5. Step 5: Solve for x
   x = 42,253,697,238.10/323,684.10
6. Step 6: Final answer
   x = 130,539.92