Finding the Fourth Proportional to 47,016.96, 64,865.52 and 28,613.76

Step by Step Solution

1. Step 1: Write the proportion equation
   47,016.96 : 64,865.52 = 28,613.76 : x
2. Step 2: Convert to fraction form
   47,016.96/64,865.52 = 28,613.76/x
3. Step 3: Cross multiply
   47,016.96x = 64,865.52 × 28,613.76
4. Step 4: Simplify right side
   47,016.96x = 1,856,046,421.56
5. Step 5: Solve for x
   x = 1,856,046,421.56/47,016.96
6. Step 6: Final answer
   x = 39,476.10