Finding the Fourth Proportional to 10,436.47, 14,402.99 and 5,720.76

Step by Step Solution

1. Step 1: Write the proportion equation
   10,436.47 : 14,402.99 = 5,720.76 : x
2. Step 2: Convert to fraction form
   10,436.47/14,402.99 = 5,720.76/x
3. Step 3: Cross multiply
   10,436.47x = 14,402.99 × 5,720.76
4. Step 4: Simplify right side
   10,436.47x = 82,396,063.37
5. Step 5: Solve for x
   x = 82,396,063.37/10,436.47
6. Step 6: Final answer
   x = 7,895.01