Finding the Fourth Proportional to 56,146.18, 77,481.57 and 30,995.50

Step by Step Solution

1. Step 1: Write the proportion equation
   56,146.18 : 77,481.57 = 30,995.50 : x
2. Step 2: Convert to fraction form
   56,146.18/77,481.57 = 30,995.50/x
3. Step 3: Cross multiply
   56,146.18x = 77,481.57 × 30,995.50
4. Step 4: Simplify right side
   56,146.18x = 2,401,580,002.94
5. Step 5: Solve for x
   x = 2,401,580,002.94/56,146.18
6. Step 6: Final answer
   x = 42,773.70