Finding the Fourth Proportional to 56,236.82, 77,604.42 and 30,742.72

Step by Step Solution

1. Step 1: Write the proportion equation
   56,236.82 : 77,604.42 = 30,742.72 : x
2. Step 2: Convert to fraction form
   56,236.82/77,604.42 = 30,742.72/x
3. Step 3: Cross multiply
   56,236.82x = 77,604.42 × 30,742.72
4. Step 4: Simplify right side
   56,236.82x = 2,385,770,954.82
5. Step 5: Solve for x
   x = 2,385,770,954.82/56,236.82
6. Step 6: Final answer
   x = 42,423.65