Finding the Fourth Proportional to 39,096.72, 58,656 and 12,819.96

Step by Step Solution

1. Step 1: Write the proportion equation
   39,096.72 : 58,656 = 12,819.96 : x
2. Step 2: Convert to fraction form
   39,096.72/58,656 = 12,819.96/x
3. Step 3: Cross multiply
   39,096.72x = 58,656 × 12,819.96
4. Step 4: Simplify right side
   39,096.72x = 751,967,573.76
5. Step 5: Solve for x
   x = 751,967,573.76/39,096.72
6. Step 6: Final answer
   x = 19,233.52