Finding the Fourth Proportional to 55,602.24, 76,728.24 and 30,451.20

Step by Step Solution

1. Step 1: Write the proportion equation
   55,602.24 : 76,728.24 = 30,451.20 : x
2. Step 2: Convert to fraction form
   55,602.24/76,728.24 = 30,451.20/x
3. Step 3: Cross multiply
   55,602.24x = 76,728.24 × 30,451.20
4. Step 4: Simplify right side
   55,602.24x = 2,336,466,981.89
5. Step 5: Solve for x
   x = 2,336,466,981.89/55,602.24
6. Step 6: Final answer
   x = 42,021.09