Finding the Fourth Proportional to 78,952.72, 108,952.38 and 47,142.88

Step by Step Solution

1. Step 1: Write the proportion equation
   78,952.72 : 108,952.38 = 47,142.88 : x
2. Step 2: Convert to fraction form
   78,952.72/108,952.38 = 47,142.88/x
3. Step 3: Cross multiply
   78,952.72x = 108,952.38 × 47,142.88
4. Step 4: Simplify right side
   78,952.72x = 5,136,328,976.05
5. Step 5: Solve for x
   x = 5,136,328,976.05/78,952.72
6. Step 6: Final answer
   x = 65,055.76