Finding the Fourth Proportional to 39,271.89, 58,911.51 and 15,900.15

Step by Step Solution

1. Step 1: Write the proportion equation
   39,271.89 : 58,911.51 = 15,900.15 : x
2. Step 2: Convert to fraction form
   39,271.89/58,911.51 = 15,900.15/x
3. Step 3: Cross multiply
   39,271.89x = 58,911.51 × 15,900.15
4. Step 4: Simplify right side
   39,271.89x = 936,701,845.73
5. Step 5: Solve for x
   x = 936,701,845.73/39,271.89
6. Step 6: Final answer
   x = 23,851.71