Finding the Fourth Proportional to 407,329.59, 610,994.34 and 126,868.71

Step by Step Solution

1. Step 1: Write the proportion equation
   407,329.59 : 610,994.34 = 126,868.71 : x
2. Step 2: Convert to fraction form
   407,329.59/610,994.34 = 126,868.71/x
3. Step 3: Cross multiply
   407,329.59x = 610,994.34 × 126,868.71
4. Step 4: Simplify right side
   407,329.59x = 77,516,063,733.10
5. Step 5: Solve for x
   x = 77,516,063,733.10/407,329.59
6. Step 6: Final answer
   x = 190,303.05