Finding the Fourth Proportional to 30,577.68, 42,198.76 and 17,151.76

Step by Step Solution

1. Step 1: Write the proportion equation
   30,577.68 : 42,198.76 = 17,151.76 : x
2. Step 2: Convert to fraction form
   30,577.68/42,198.76 = 17,151.76/x
3. Step 3: Cross multiply
   30,577.68x = 42,198.76 × 17,151.76
4. Step 4: Simplify right side
   30,577.68x = 723,783,003.82
5. Step 5: Solve for x
   x = 723,783,003.82/30,577.68
6. Step 6: Final answer
   x = 23,670.30