Finding the Fourth Proportional to 109,620.72, 164,429.64 and 26,514

Step by Step Solution

1. Step 1: Write the proportion equation
   109,620.72 : 164,429.64 = 26,514 : x
2. Step 2: Convert to fraction form
   109,620.72/164,429.64 = 26,514/x
3. Step 3: Cross multiply
   109,620.72x = 164,429.64 × 26,514
4. Step 4: Simplify right side
   109,620.72x = 4,359,687,474.96
5. Step 5: Solve for x
   x = 4,359,687,474.96/109,620.72
6. Step 6: Final answer
   x = 39,770.65