Finding the Fourth Proportional to 10,685.34, 16,031.25 and 5,494.86

Step by Step Solution

1. Step 1: Write the proportion equation
   10,685.34 : 16,031.25 = 5,494.86 : x
2. Step 2: Convert to fraction form
   10,685.34/16,031.25 = 5,494.86/x
3. Step 3: Cross multiply
   10,685.34x = 16,031.25 × 5,494.86
4. Step 4: Simplify right side
   10,685.34x = 88,089,474.38
5. Step 5: Solve for x
   x = 88,089,474.38/10,685.34
6. Step 6: Final answer
   x = 8,243.96