Finding the Fourth Proportional to 111,135.29, 153,357.00 and 65,805.16

Step by Step Solution

1. Step 1: Write the proportion equation
   111,135.29 : 153,357.00 = 65,805.16 : x
2. Step 2: Convert to fraction form
   111,135.29/153,357.00 = 65,805.16/x
3. Step 3: Cross multiply
   111,135.29x = 153,357.00 × 65,805.16
4. Step 4: Simplify right side
   111,135.29x = 10,091,681,579.50
5. Step 5: Solve for x
   x = 10,091,681,579.50/111,135.29
6. Step 6: Final answer
   x = 90,805.37