Finding the Fourth Proportional to 55,875.24, 77,105.88 and 30,724.56

Step by Step Solution

1. Step 1: Write the proportion equation
   55,875.24 : 77,105.88 = 30,724.56 : x
2. Step 2: Convert to fraction form
   55,875.24/77,105.88 = 30,724.56/x
3. Step 3: Cross multiply
   55,875.24x = 77,105.88 × 30,724.56
4. Step 4: Simplify right side
   55,875.24x = 2,369,044,236.41
5. Step 5: Solve for x
   x = 2,369,044,236.41/55,875.24
6. Step 6: Final answer
   x = 42,398.82