Finding the Fourth Proportional to 10,436.34, 14,402.10 and 5,720.60

Step by Step Solution

1. Step 1: Write the proportion equation
   10,436.34 : 14,402.10 = 5,720.60 : x
2. Step 2: Convert to fraction form
   10,436.34/14,402.10 = 5,720.60/x
3. Step 3: Cross multiply
   10,436.34x = 14,402.10 × 5,720.60
4. Step 4: Simplify right side
   10,436.34x = 82,388,653.26
5. Step 5: Solve for x
   x = 82,388,653.26/10,436.34
6. Step 6: Final answer
   x = 7,894.40