Finding the Fourth Proportional to 10,436.32, 14,402.24 and 5,720.50

Step by Step Solution

1. Step 1: Write the proportion equation
   10,436.32 : 14,402.24 = 5,720.50 : x
2. Step 2: Convert to fraction form
   10,436.32/14,402.24 = 5,720.50/x
3. Step 3: Cross multiply
   10,436.32x = 14,402.24 × 5,720.50
4. Step 4: Simplify right side
   10,436.32x = 82,388,013.92
5. Step 5: Solve for x
   x = 82,388,013.92/10,436.32
6. Step 6: Final answer
   x = 7,894.35