Finding the Fourth Proportional to 43,643.31, 65,468.77 and 12,053.42

Step by Step Solution

1. Step 1: Write the proportion equation
   43,643.31 : 65,468.77 = 12,053.42 : x
2. Step 2: Convert to fraction form
   43,643.31/65,468.77 = 12,053.42/x
3. Step 3: Cross multiply
   43,643.31x = 65,468.77 × 12,053.42
4. Step 4: Simplify right side
   43,643.31x = 789,122,581.69
5. Step 5: Solve for x
   x = 789,122,581.69/43,643.31
6. Step 6: Final answer
   x = 18,081.18