Finding the Fourth Proportional to 109,776.79, 164,665.58 and 26,670.79

Step by Step Solution

1. Step 1: Write the proportion equation
   109,776.79 : 164,665.58 = 26,670.79 : x
2. Step 2: Convert to fraction form
   109,776.79/164,665.58 = 26,670.79/x
3. Step 3: Cross multiply
   109,776.79x = 164,665.58 × 26,670.79
4. Step 4: Simplify right side
   109,776.79x = 4,391,760,147.73
5. Step 5: Solve for x
   x = 4,391,760,147.73/109,776.79
6. Step 6: Final answer
   x = 40,006.27