Finding the Fourth Proportional to 55,527.30, 76,573.86 and 47,028.78

Step by Step Solution

1. Step 1: Write the proportion equation
   55,527.30 : 76,573.86 = 47,028.78 : x
2. Step 2: Convert to fraction form
   55,527.30/76,573.86 = 47,028.78/x
3. Step 3: Cross multiply
   55,527.30x = 76,573.86 × 47,028.78
4. Step 4: Simplify right side
   55,527.30x = 3,601,175,215.69
5. Step 5: Solve for x
   x = 3,601,175,215.69/55,527.30
6. Step 6: Final answer
   x = 64,854.14