Finding the Fourth Proportional to 30,992.83, 42,776.78 and 19,677.82

Step by Step Solution

1. Step 1: Write the proportion equation
   30,992.83 : 42,776.78 = 19,677.82 : x
2. Step 2: Convert to fraction form
   30,992.83/42,776.78 = 19,677.82/x
3. Step 3: Cross multiply
   30,992.83x = 42,776.78 × 19,677.82
4. Step 4: Simplify right side
   30,992.83x = 841,753,777.02
5. Step 5: Solve for x
   x = 841,753,777.02/30,992.83
6. Step 6: Final answer
   x = 27,159.63