Finding the Fourth Proportional to 28,297.29, 42,439.34 and 10,536.32

Step by Step Solution

1. Step 1: Write the proportion equation
   28,297.29 : 42,439.34 = 10,536.32 : x
2. Step 2: Convert to fraction form
   28,297.29/42,439.34 = 10,536.32/x
3. Step 3: Cross multiply
   28,297.29x = 42,439.34 × 10,536.32
4. Step 4: Simplify right side
   28,297.29x = 447,154,466.83
5. Step 5: Solve for x
   x = 447,154,466.83/28,297.29
6. Step 6: Final answer
   x = 15,802.02