Finding the Fourth Proportional to 10,436.52, 14,402.34 and 5,720.64

Step by Step Solution

1. Step 1: Write the proportion equation
   10,436.52 : 14,402.34 = 5,720.64 : x
2. Step 2: Convert to fraction form
   10,436.52/14,402.34 = 5,720.64/x
3. Step 3: Cross multiply
   10,436.52x = 14,402.34 × 5,720.64
4. Step 4: Simplify right side
   10,436.52x = 82,390,602.30
5. Step 5: Solve for x
   x = 82,390,602.30/10,436.52
6. Step 6: Final answer
   x = 7,894.45