Finding the Fourth Proportional to 72,777.13, 109,128.77 and 33,300.42

Step by Step Solution

1. Step 1: Write the proportion equation
   72,777.13 : 109,128.77 = 33,300.42 : x
2. Step 2: Convert to fraction form
   72,777.13/109,128.77 = 33,300.42/x
3. Step 3: Cross multiply
   72,777.13x = 109,128.77 × 33,300.42
4. Step 4: Simplify right side
   72,777.13x = 3,634,033,424.22
5. Step 5: Solve for x
   x = 3,634,033,424.22/72,777.13
6. Step 6: Final answer
   x = 49,933.73