Finding the Fourth Proportional to 72,739.98, 109,224.72 and 43,289.26

Step by Step Solution

1. Step 1: Write the proportion equation
   72,739.98 : 109,224.72 = 43,289.26 : x
2. Step 2: Convert to fraction form
   72,739.98/109,224.72 = 43,289.26/x
3. Step 3: Cross multiply
   72,739.98x = 109,224.72 × 43,289.26
4. Step 4: Simplify right side
   72,739.98x = 4,728,257,302.51
5. Step 5: Solve for x
   x = 4,728,257,302.51/72,739.98
6. Step 6: Final answer
   x = 65,002.18