Finding the Fourth Proportional to 55,650.21, 76,752.61 and 48,921.57

Step by Step Solution

1. Step 1: Write the proportion equation
   55,650.21 : 76,752.61 = 48,921.57 : x
2. Step 2: Convert to fraction form
   55,650.21/76,752.61 = 48,921.57/x
3. Step 3: Cross multiply
   55,650.21x = 76,752.61 × 48,921.57
4. Step 4: Simplify right side
   55,650.21x = 3,754,858,182.80
5. Step 5: Solve for x
   x = 3,754,858,182.80/55,650.21
6. Step 6: Final answer
   x = 67,472.49