Finding the Fourth Proportional to 7,636.95, 10,538.73 and 4,280.31

Step by Step Solution

1. Step 1: Write the proportion equation
   7,636.95 : 10,538.73 = 4,280.31 : x
2. Step 2: Convert to fraction form
   7,636.95/10,538.73 = 4,280.31/x
3. Step 3: Cross multiply
   7,636.95x = 10,538.73 × 4,280.31
4. Step 4: Simplify right side
   7,636.95x = 45,109,031.41
5. Step 5: Solve for x
   x = 45,109,031.41/7,636.95
6. Step 6: Final answer
   x = 5,906.68