Finding the Fourth Proportional to 55,822.67, 77,036.72 and 30,328.78

Step by Step Solution

1. Step 1: Write the proportion equation
   55,822.67 : 77,036.72 = 30,328.78 : x
2. Step 2: Convert to fraction form
   55,822.67/77,036.72 = 30,328.78/x
3. Step 3: Cross multiply
   55,822.67x = 77,036.72 × 30,328.78
4. Step 4: Simplify right side
   55,822.67x = 2,336,429,388.57
5. Step 5: Solve for x
   x = 2,336,429,388.57/55,822.67
6. Step 6: Final answer
   x = 41,854.49