Finding the Fourth Proportional to 10,231.98, 15,273.27 and 8,780.46

Step by Step Solution

1. Step 1: Write the proportion equation
   10,231.98 : 15,273.27 = 8,780.46 : x
2. Step 2: Convert to fraction form
   10,231.98/15,273.27 = 8,780.46/x
3. Step 3: Cross multiply
   10,231.98x = 15,273.27 × 8,780.46
4. Step 4: Simplify right side
   10,231.98x = 134,106,336.30
5. Step 5: Solve for x
   x = 134,106,336.30/10,231.98
6. Step 6: Final answer
   x = 13,106.59