Finding the Fourth Proportional to 91,608.24, 137,487.72 and 39,077.04

Step by Step Solution

1. Step 1: Write the proportion equation
   91,608.24 : 137,487.72 = 39,077.04 : x
2. Step 2: Convert to fraction form
   91,608.24/137,487.72 = 39,077.04/x
3. Step 3: Cross multiply
   91,608.24x = 137,487.72 × 39,077.04
4. Step 4: Simplify right side
   91,608.24x = 5,372,613,133.95
5. Step 5: Solve for x
   x = 5,372,613,133.95/91,608.24
6. Step 6: Final answer
   x = 58,647.71