Finding the Fourth Proportional to 15,077.34, 20,806.71 and 8,363.99

Step by Step Solution

1. Step 1: Write the proportion equation
   15,077.34 : 20,806.71 = 8,363.99 : x
2. Step 2: Convert to fraction form
   15,077.34/20,806.71 = 8,363.99/x
3. Step 3: Cross multiply
   15,077.34x = 20,806.71 × 8,363.99
4. Step 4: Simplify right side
   15,077.34x = 174,027,010.34
5. Step 5: Solve for x
   x = 174,027,010.34/15,077.34
6. Step 6: Final answer
   x = 11,542.29