Finding the Fourth Proportional to 56,147.58, 77,481.63 and 30,996.54

Step by Step Solution

1. Step 1: Write the proportion equation
   56,147.58 : 77,481.63 = 30,996.54 : x
2. Step 2: Convert to fraction form
   56,147.58/77,481.63 = 30,996.54/x
3. Step 3: Cross multiply
   56,147.58x = 77,481.63 × 30,996.54
4. Step 4: Simplify right side
   56,147.58x = 2,401,662,443.56
5. Step 5: Solve for x
   x = 2,401,662,443.56/56,147.58
6. Step 6: Final answer
   x = 42,774.10