Finding the Fourth Proportional to 91,608.56, 137,464.84 and 39,012.56

Step by Step Solution

1. Step 1: Write the proportion equation
   91,608.56 : 137,464.84 = 39,012.56 : x
2. Step 2: Convert to fraction form
   91,608.56/137,464.84 = 39,012.56/x
3. Step 3: Cross multiply
   91,608.56x = 137,464.84 × 39,012.56
4. Step 4: Simplify right side
   91,608.56x = 5,362,855,318.39
5. Step 5: Solve for x
   x = 5,362,855,318.39/91,608.56
6. Step 6: Final answer
   x = 58,540.98