Finding the Fourth Proportional to 72,621.72, 108,878.88 and 30,514.26

Step by Step Solution

1. Step 1: Write the proportion equation
   72,621.72 : 108,878.88 = 30,514.26 : x
2. Step 2: Convert to fraction form
   72,621.72/108,878.88 = 30,514.26/x
3. Step 3: Cross multiply
   72,621.72x = 108,878.88 × 30,514.26
4. Step 4: Simplify right side
   72,621.72x = 3,322,358,452.83
5. Step 5: Solve for x
   x = 3,322,358,452.83/72,621.72
6. Step 6: Final answer
   x = 45,748.83