Finding the Fourth Proportional to 43,443.80, 64,896.15 and 31,502.78

Step by Step Solution

1. Step 1: Write the proportion equation
   43,443.80 : 64,896.15 = 31,502.78 : x
2. Step 2: Convert to fraction form
   43,443.80/64,896.15 = 31,502.78/x
3. Step 3: Cross multiply
   43,443.80x = 64,896.15 × 31,502.78
4. Step 4: Simplify right side
   43,443.80x = 2,044,409,136.30
5. Step 5: Solve for x
   x = 2,044,409,136.30/43,443.80
6. Step 6: Final answer
   x = 47,058.71