Finding the Fourth Proportional to 55,739.52, 76,921.88 and 30,589

Step by Step Solution

1. Step 1: Write the proportion equation
   55,739.52 : 76,921.88 = 30,589 : x
2. Step 2: Convert to fraction form
   55,739.52/76,921.88 = 30,589/x
3. Step 3: Cross multiply
   55,739.52x = 76,921.88 × 30,589
4. Step 4: Simplify right side
   55,739.52x = 2,352,963,387.32
5. Step 5: Solve for x
   x = 2,352,963,387.32/55,739.52
6. Step 6: Final answer
   x = 42,213.56