Finding the Fourth Proportional to 72,741.22, 109,012.29 and 54,957.26

Step by Step Solution

1. Step 1: Write the proportion equation
   72,741.22 : 109,012.29 = 54,957.26 : x
2. Step 2: Convert to fraction form
   72,741.22/109,012.29 = 54,957.26/x
3. Step 3: Cross multiply
   72,741.22x = 109,012.29 × 54,957.26
4. Step 4: Simplify right side
   72,741.22x = 5,991,016,764.73
5. Step 5: Solve for x
   x = 5,991,016,764.73/72,741.22
6. Step 6: Final answer
   x = 82,360.69