Finding the Fourth Proportional to 56,076.93, 77,380.79 and 30,924.81

Step by Step Solution

1. Step 1: Write the proportion equation
   56,076.93 : 77,380.79 = 30,924.81 : x
2. Step 2: Convert to fraction form
   56,076.93/77,380.79 = 30,924.81/x
3. Step 3: Cross multiply
   56,076.93x = 77,380.79 × 30,924.81
4. Step 4: Simplify right side
   56,076.93x = 2,392,986,073.78
5. Step 5: Solve for x
   x = 2,392,986,073.78/56,076.93
6. Step 6: Final answer
   x = 42,673.27