Finding the Fourth Proportional to 111,061.81, 153,285.03 and 65,764.94

Step by Step Solution

1. Step 1: Write the proportion equation
   111,061.81 : 153,285.03 = 65,764.94 : x
2. Step 2: Convert to fraction form
   111,061.81/153,285.03 = 65,764.94/x
3. Step 3: Cross multiply
   111,061.81x = 153,285.03 × 65,764.94
4. Step 4: Simplify right side
   111,061.81x = 10,080,780,800.85
5. Step 5: Solve for x
   x = 10,080,780,800.85/111,061.81
6. Step 6: Final answer
   x = 90,767.30