Finding the Fourth Proportional to 55,389.01, 76,436.43 and 30,238.51

Step by Step Solution

1. Step 1: Write the proportion equation
   55,389.01 : 76,436.43 = 30,238.51 : x
2. Step 2: Convert to fraction form
   55,389.01/76,436.43 = 30,238.51/x
3. Step 3: Cross multiply
   55,389.01x = 76,436.43 × 30,238.51
4. Step 4: Simplify right side
   55,389.01x = 2,311,323,752.92
5. Step 5: Solve for x
   x = 2,311,323,752.92/55,389.01
6. Step 6: Final answer
   x = 41,728.92