Finding the Fourth Proportional to 10,636.41, 15,874.21 and 10,359.93

Step by Step Solution

1. Step 1: Write the proportion equation
   10,636.41 : 15,874.21 = 10,359.93 : x
2. Step 2: Convert to fraction form
   10,636.41/15,874.21 = 10,359.93/x
3. Step 3: Cross multiply
   10,636.41x = 15,874.21 × 10,359.93
4. Step 4: Simplify right side
   10,636.41x = 164,455,730.31
5. Step 5: Solve for x
   x = 164,455,730.31/10,636.41
6. Step 6: Final answer
   x = 15,461.58