Finding the Fourth Proportional to 72,776.76, 109,191.84 and 30,667.44

Step by Step Solution

1. Step 1: Write the proportion equation
   72,776.76 : 109,191.84 = 30,667.44 : x
2. Step 2: Convert to fraction form
   72,776.76/109,191.84 = 30,667.44/x
3. Step 3: Cross multiply
   72,776.76x = 109,191.84 × 30,667.44
4. Step 4: Simplify right side
   72,776.76x = 3,348,634,201.69
5. Step 5: Solve for x
   x = 3,348,634,201.69/72,776.76
6. Step 6: Final answer
   x = 46,012.41