Finding the Fourth Proportional to 46,644.42, 64,369.98 and 28,729.25

Step by Step Solution

1. Step 1: Write the proportion equation
   46,644.42 : 64,369.98 = 28,729.25 : x
2. Step 2: Convert to fraction form
   46,644.42/64,369.98 = 28,729.25/x
3. Step 3: Cross multiply
   46,644.42x = 64,369.98 × 28,729.25
4. Step 4: Simplify right side
   46,644.42x = 1,849,301,247.92
5. Step 5: Solve for x
   x = 1,849,301,247.92/46,644.42
6. Step 6: Final answer
   x = 39,646.78