Finding the Fourth Proportional to 110,805.09, 152,910.90 and 65,499.45

Step by Step Solution

1. Step 1: Write the proportion equation
   110,805.09 : 152,910.90 = 65,499.45 : x
2. Step 2: Convert to fraction form
   110,805.09/152,910.90 = 65,499.45/x
3. Step 3: Cross multiply
   110,805.09x = 152,910.90 × 65,499.45
4. Step 4: Simplify right side
   110,805.09x = 10,015,579,849.01
5. Step 5: Solve for x
   x = 10,015,579,849.01/110,805.09
6. Step 6: Final answer
   x = 90,389.17