Finding the Fourth Proportional to 109,491.05, 164,236.20 and 26,385.05

Step by Step Solution

1. Step 1: Write the proportion equation
   109,491.05 : 164,236.20 = 26,385.05 : x
2. Step 2: Convert to fraction form
   109,491.05/164,236.20 = 26,385.05/x
3. Step 3: Cross multiply
   109,491.05x = 164,236.20 × 26,385.05
4. Step 4: Simplify right side
   109,491.05x = 4,333,379,527.63
5. Step 5: Solve for x
   x = 4,333,379,527.63/109,491.05
6. Step 6: Final answer
   x = 39,577.48