Finding the Fourth Proportional to 423,654.69, 635,487.17 and 124,141.34

Step by Step Solution

1. Step 1: Write the proportion equation
   423,654.69 : 635,487.17 = 124,141.34 : x
2. Step 2: Convert to fraction form
   423,654.69/635,487.17 = 124,141.34/x
3. Step 3: Cross multiply
   423,654.69x = 635,487.17 × 124,141.34
4. Step 4: Simplify right side
   423,654.69x = 78,890,230,502.91
5. Step 5: Solve for x
   x = 78,890,230,502.91/423,654.69
6. Step 6: Final answer
   x = 186,213.52