Finding the Fourth Proportional to 111,287.41, 153,584.16 and 62,872.55

Step by Step Solution

1. Step 1: Write the proportion equation
   111,287.41 : 153,584.16 = 62,872.55 : x
2. Step 2: Convert to fraction form
   111,287.41/153,584.16 = 62,872.55/x
3. Step 3: Cross multiply
   111,287.41x = 153,584.16 × 62,872.55
4. Step 4: Simplify right side
   111,287.41x = 9,656,227,010.89
5. Step 5: Solve for x
   x = 9,656,227,010.89/111,287.41
6. Step 6: Final answer
   x = 86,768.37