Finding the Fourth Proportional to 72,538.72, 108,808.68 and 19,951.08

Step by Step Solution

1. Step 1: Write the proportion equation
   72,538.72 : 108,808.68 = 19,951.08 : x
2. Step 2: Convert to fraction form
   72,538.72/108,808.68 = 19,951.08/x
3. Step 3: Cross multiply
   72,538.72x = 108,808.68 × 19,951.08
4. Step 4: Simplify right side
   72,538.72x = 2,170,850,679.37
5. Step 5: Solve for x
   x = 2,170,850,679.37/72,538.72
6. Step 6: Final answer
   x = 29,926.79