Finding the Fourth Proportional to 13,536.50, 20,300.42 and 4,300.34

Step by Step Solution

1. Step 1: Write the proportion equation
   13,536.50 : 20,300.42 = 4,300.34 : x
2. Step 2: Convert to fraction form
   13,536.50/20,300.42 = 4,300.34/x
3. Step 3: Cross multiply
   13,536.50x = 20,300.42 × 4,300.34
4. Step 4: Simplify right side
   13,536.50x = 87,298,708.14
5. Step 5: Solve for x
   x = 87,298,708.14/13,536.50
6. Step 6: Final answer
   x = 6,449.13