Finding the Fourth Proportional to 111,089.90, 153,294.18 and 65,769.32

Step by Step Solution

1. Step 1: Write the proportion equation
   111,089.90 : 153,294.18 = 65,769.32 : x
2. Step 2: Convert to fraction form
   111,089.90/153,294.18 = 65,769.32/x
3. Step 3: Cross multiply
   111,089.90x = 153,294.18 × 65,769.32
4. Step 4: Simplify right side
   111,089.90x = 10,082,053,978.56
5. Step 5: Solve for x
   x = 10,082,053,978.56/111,089.90
6. Step 6: Final answer
   x = 90,755.81