Finding the Fourth Proportional to 55,768.84, 76,960.98 and 30,618.28

Step by Step Solution

1. Step 1: Write the proportion equation
   55,768.84 : 76,960.98 = 30,618.28 : x
2. Step 2: Convert to fraction form
   55,768.84/76,960.98 = 30,618.28/x
3. Step 3: Cross multiply
   55,768.84x = 76,960.98 × 30,618.28
4. Step 4: Simplify right side
   55,768.84x = 2,356,412,834.71
5. Step 5: Solve for x
   x = 2,356,412,834.71/55,768.84
6. Step 6: Final answer
   x = 42,253.22