Finding the Fourth Proportional to 109,491, 164,236.59 and 26,385

Step by Step Solution

1. Step 1: Write the proportion equation
   109,491 : 164,236.59 = 26,385 : x
2. Step 2: Convert to fraction form
   109,491/164,236.59 = 26,385/x
3. Step 3: Cross multiply
   109,491x = 164,236.59 × 26,385
4. Step 4: Simplify right side
   109,491x = 4,333,382,427.15
5. Step 5: Solve for x
   x = 4,333,382,427.15/109,491
6. Step 6: Final answer
   x = 39,577.52