Finding the Fourth Proportional to 10,436.80, 14,402.24 and 5,720.17

Step by Step Solution

1. Step 1: Write the proportion equation
   10,436.80 : 14,402.24 = 5,720.17 : x
2. Step 2: Convert to fraction form
   10,436.80/14,402.24 = 5,720.17/x
3. Step 3: Cross multiply
   10,436.80x = 14,402.24 × 5,720.17
4. Step 4: Simplify right side
   10,436.80x = 82,383,261.18
5. Step 5: Solve for x
   x = 82,383,261.18/10,436.80
6. Step 6: Final answer
   x = 7,893.54