Finding the Fourth Proportional to 109,665, 164,498.40 and 26,559

Step by Step Solution

1. Step 1: Write the proportion equation
   109,665 : 164,498.40 = 26,559 : x
2. Step 2: Convert to fraction form
   109,665/164,498.40 = 26,559/x
3. Step 3: Cross multiply
   109,665x = 164,498.40 × 26,559
4. Step 4: Simplify right side
   109,665x = 4,368,913,005.60
5. Step 5: Solve for x
   x = 4,368,913,005.60/109,665
6. Step 6: Final answer
   x = 39,838.72