Finding the Fourth Proportional to 64,046.57, 96,128.45 and 32,478.42

Step by Step Solution

1. Step 1: Write the proportion equation
   64,046.57 : 96,128.45 = 32,478.42 : x
2. Step 2: Convert to fraction form
   64,046.57/96,128.45 = 32,478.42/x
3. Step 3: Cross multiply
   64,046.57x = 96,128.45 × 32,478.42
4. Step 4: Simplify right side
   64,046.57x = 3,122,099,770.34
5. Step 5: Solve for x
   x = 3,122,099,770.34/64,046.57
6. Step 6: Final answer
   x = 48,747.34