Finding the Fourth Proportional to 301,158.89, 415,591.78 and 172,089.17

Step by Step Solution

1. Step 1: Write the proportion equation
   301,158.89 : 415,591.78 = 172,089.17 : x
2. Step 2: Convert to fraction form
   301,158.89/415,591.78 = 172,089.17/x
3. Step 3: Cross multiply
   301,158.89x = 415,591.78 × 172,089.17
4. Step 4: Simplify right side
   301,158.89x = 71,518,845,087.78
5. Step 5: Solve for x
   x = 71,518,845,087.78/301,158.89
6. Step 6: Final answer
   x = 237,478.78