Finding the Fourth Proportional to 111,061.31, 153,284.34 and 65,764.44

Step by Step Solution

1. Step 1: Write the proportion equation
   111,061.31 : 153,284.34 = 65,764.44 : x
2. Step 2: Convert to fraction form
   111,061.31/153,284.34 = 65,764.44/x
3. Step 3: Cross multiply
   111,061.31x = 153,284.34 × 65,764.44
4. Step 4: Simplify right side
   111,061.31x = 10,080,658,780.87
5. Step 5: Solve for x
   x = 10,080,658,780.87/111,061.31
6. Step 6: Final answer
   x = 90,766.61