Finding the Fourth Proportional to 102,449.55, 153,665.69 and 57,936.27

Step by Step Solution

1. Step 1: Write the proportion equation
   102,449.55 : 153,665.69 = 57,936.27 : x
2. Step 2: Convert to fraction form
   102,449.55/153,665.69 = 57,936.27/x
3. Step 3: Cross multiply
   102,449.55x = 153,665.69 × 57,936.27
4. Step 4: Simplify right side
   102,449.55x = 8,902,816,615.89
5. Step 5: Solve for x
   x = 8,902,816,615.89/102,449.55
6. Step 6: Final answer
   x = 86,899.52