Finding the Fourth Proportional to 60,653.12, 91,081.92 and 39,629.12

Step by Step Solution

1. Step 1: Write the proportion equation
   60,653.12 : 91,081.92 = 39,629.12 : x
2. Step 2: Convert to fraction form
   60,653.12/91,081.92 = 39,629.12/x
3. Step 3: Cross multiply
   60,653.12x = 91,081.92 × 39,629.12
4. Step 4: Simplify right side
   60,653.12x = 3,609,496,337.51
5. Step 5: Solve for x
   x = 3,609,496,337.51/60,653.12
6. Step 6: Final answer
   x = 59,510.48