Finding the Fourth Proportional to 55,589.16, 83,311.42 and 42,393

Step by Step Solution

1. Step 1: Write the proportion equation
   55,589.16 : 83,311.42 = 42,393 : x
2. Step 2: Convert to fraction form
   55,589.16/83,311.42 = 42,393/x
3. Step 3: Cross multiply
   55,589.16x = 83,311.42 × 42,393
4. Step 4: Simplify right side
   55,589.16x = 3,531,821,028.06
5. Step 5: Solve for x
   x = 3,531,821,028.06/55,589.16
6. Step 6: Final answer
   x = 63,534.35