Finding the Fourth Proportional to 10,436.38, 14,402.10 and 5,720.74

Step by Step Solution

1. Step 1: Write the proportion equation
   10,436.38 : 14,402.10 = 5,720.74 : x
2. Step 2: Convert to fraction form
   10,436.38/14,402.10 = 5,720.74/x
3. Step 3: Cross multiply
   10,436.38x = 14,402.10 × 5,720.74
4. Step 4: Simplify right side
   10,436.38x = 82,390,669.55
5. Step 5: Solve for x
   x = 82,390,669.55/10,436.38
6. Step 6: Final answer
   x = 7,894.56