Finding the Fourth Proportional to 30,762, 42,451.56 and 17,516.56

Step by Step Solution

1. Step 1: Write the proportion equation
   30,762 : 42,451.56 = 17,516.56 : x
2. Step 2: Convert to fraction form
   30,762/42,451.56 = 17,516.56/x
3. Step 3: Cross multiply
   30,762x = 42,451.56 × 17,516.56
4. Step 4: Simplify right side
   30,762x = 743,605,297.83
5. Step 5: Solve for x
   x = 743,605,297.83/30,762
6. Step 6: Final answer
   x = 24,172.85