Finding the Fourth Proportional to 43,136.37, 64,715.30 and 34,285.10

Step by Step Solution

1. Step 1: Write the proportion equation
   43,136.37 : 64,715.30 = 34,285.10 : x
2. Step 2: Convert to fraction form
   43,136.37/64,715.30 = 34,285.10/x
3. Step 3: Cross multiply
   43,136.37x = 64,715.30 × 34,285.10
4. Step 4: Simplify right side
   43,136.37x = 2,218,770,037.03
5. Step 5: Solve for x
   x = 2,218,770,037.03/43,136.37
6. Step 6: Final answer
   x = 51,436.18