Finding the Fourth Proportional to 72,297.58, 108,031.96 and 55,105.33

Step by Step Solution

1. Step 1: Write the proportion equation
   72,297.58 : 108,031.96 = 55,105.33 : x
2. Step 2: Convert to fraction form
   72,297.58/108,031.96 = 55,105.33/x
3. Step 3: Cross multiply
   72,297.58x = 108,031.96 × 55,105.33
4. Step 4: Simplify right side
   72,297.58x = 5,953,136,806.35
5. Step 5: Solve for x
   x = 5,953,136,806.35/72,297.58
6. Step 6: Final answer
   x = 82,342.13