Finding the Fourth Proportional to 316,740.30, 437,100.89 and 171,545.64

Step by Step Solution

1. Step 1: Write the proportion equation
   316,740.30 : 437,100.89 = 171,545.64 : x
2. Step 2: Convert to fraction form
   316,740.30/437,100.89 = 171,545.64/x
3. Step 3: Cross multiply
   316,740.30x = 437,100.89 × 171,545.64
4. Step 4: Simplify right side
   316,740.30x = 74,982,751,061.89
5. Step 5: Solve for x
   x = 74,982,751,061.89/316,740.30
6. Step 6: Final answer
   x = 236,732.59