Finding the Fourth Proportional to 12,682.98, 19,010.81 and 5,285.46

Step by Step Solution

1. Step 1: Write the proportion equation
   12,682.98 : 19,010.81 = 5,285.46 : x
2. Step 2: Convert to fraction form
   12,682.98/19,010.81 = 5,285.46/x
3. Step 3: Cross multiply
   12,682.98x = 19,010.81 × 5,285.46
4. Step 4: Simplify right side
   12,682.98x = 100,480,875.82
5. Step 5: Solve for x
   x = 100,480,875.82/12,682.98
6. Step 6: Final answer
   x = 7,922.50