Finding the Fourth Proportional to 55,697.28, 76,859 and 30,546.78

Step by Step Solution

1. Step 1: Write the proportion equation
   55,697.28 : 76,859 = 30,546.78 : x
2. Step 2: Convert to fraction form
   55,697.28/76,859 = 30,546.78/x
3. Step 3: Cross multiply
   55,697.28x = 76,859 × 30,546.78
4. Step 4: Simplify right side
   55,697.28x = 2,347,794,964.02
5. Step 5: Solve for x
   x = 2,347,794,964.02/55,697.28
6. Step 6: Final answer
   x = 42,152.78