Finding the Fourth Proportional to 8,701.89, 13,059.77 and 3,156.83

Step by Step Solution

1. Step 1: Write the proportion equation
   8,701.89 : 13,059.77 = 3,156.83 : x
2. Step 2: Convert to fraction form
   8,701.89/13,059.77 = 3,156.83/x
3. Step 3: Cross multiply
   8,701.89x = 13,059.77 × 3,156.83
4. Step 4: Simplify right side
   8,701.89x = 41,227,392.65
5. Step 5: Solve for x
   x = 41,227,392.65/8,701.89
6. Step 6: Final answer
   x = 4,737.75