Finding the Fourth Proportional to 404,314.14, 606,543.83 and 138,012.38

Step by Step Solution

1. Step 1: Write the proportion equation
   404,314.14 : 606,543.83 = 138,012.38 : x
2. Step 2: Convert to fraction form
   404,314.14/606,543.83 = 138,012.38/x
3. Step 3: Cross multiply
   404,314.14x = 606,543.83 × 138,012.38
4. Step 4: Simplify right side
   404,314.14x = 83,710,553,829.83
5. Step 5: Solve for x
   x = 83,710,553,829.83/404,314.14
6. Step 6: Final answer
   x = 207,043.35