Finding the Fourth Proportional to 55,665.98, 76,823.92 and 30,520.34

Step by Step Solution

1. Step 1: Write the proportion equation
   55,665.98 : 76,823.92 = 30,520.34 : x
2. Step 2: Convert to fraction form
   55,665.98/76,823.92 = 30,520.34/x
3. Step 3: Cross multiply
   55,665.98x = 76,823.92 × 30,520.34
4. Step 4: Simplify right side
   55,665.98x = 2,344,692,446.95
5. Step 5: Solve for x
   x = 2,344,692,446.95/55,665.98
6. Step 6: Final answer
   x = 42,120.74