Finding the Fourth Proportional to 55,667.80, 76,734.30 and 42,185.08

Step by Step Solution

1. Step 1: Write the proportion equation
   55,667.80 : 76,734.30 = 42,185.08 : x
2. Step 2: Convert to fraction form
   55,667.80/76,734.30 = 42,185.08/x
3. Step 3: Cross multiply
   55,667.80x = 76,734.30 × 42,185.08
4. Step 4: Simplify right side
   55,667.80x = 3,237,042,584.24
5. Step 5: Solve for x
   x = 3,237,042,584.24/55,667.80
6. Step 6: Final answer
   x = 58,149.28