Finding the Fourth Proportional to 294,597.69, 406,447.82 and 172,061.91

Step by Step Solution

1. Step 1: Write the proportion equation
   294,597.69 : 406,447.82 = 172,061.91 : x
2. Step 2: Convert to fraction form
   294,597.69/406,447.82 = 172,061.91/x
3. Step 3: Cross multiply
   294,597.69x = 406,447.82 × 172,061.91
4. Step 4: Simplify right side
   294,597.69x = 69,934,187,364.23
5. Step 5: Solve for x
   x = 69,934,187,364.23/294,597.69
6. Step 6: Final answer
   x = 237,388.78