Finding the Fourth Proportional to 155,443.78, 233,165.64 and 102,840.94

Step by Step Solution

1. Step 1: Write the proportion equation
   155,443.78 : 233,165.64 = 102,840.94 : x
2. Step 2: Convert to fraction form
   155,443.78/233,165.64 = 102,840.94/x
3. Step 3: Cross multiply
   155,443.78x = 233,165.64 × 102,840.94
4. Step 4: Simplify right side
   155,443.78x = 23,978,973,593.30
5. Step 5: Solve for x
   x = 23,978,973,593.30/155,443.78
6. Step 6: Final answer
   x = 154,261.39