Finding the Fourth Proportional to 10,312.72, 15,481.94 and 10,265.33

Step by Step Solution

1. Step 1: Write the proportion equation
   10,312.72 : 15,481.94 = 10,265.33 : x
2. Step 2: Convert to fraction form
   10,312.72/15,481.94 = 10,265.33/x
3. Step 3: Cross multiply
   10,312.72x = 15,481.94 × 10,265.33
4. Step 4: Simplify right side
   10,312.72x = 158,927,210.52
5. Step 5: Solve for x
   x = 158,927,210.52/10,312.72
6. Step 6: Final answer
   x = 15,410.80