Finding the Fourth Proportional to 10,436.09, 14,401.98 and 5,720.06

Step by Step Solution

1. Step 1: Write the proportion equation
   10,436.09 : 14,401.98 = 5,720.06 : x
2. Step 2: Convert to fraction form
   10,436.09/14,401.98 = 5,720.06/x
3. Step 3: Cross multiply
   10,436.09x = 14,401.98 × 5,720.06
4. Step 4: Simplify right side
   10,436.09x = 82,380,225.72
5. Step 5: Solve for x
   x = 82,380,225.72/10,436.09
6. Step 6: Final answer
   x = 7,893.79