Finding the Fourth Proportional to 448,895.94, 673,228.71 and 133,279.62

Step by Step Solution

1. Step 1: Write the proportion equation
   448,895.94 : 673,228.71 = 133,279.62 : x
2. Step 2: Convert to fraction form
   448,895.94/673,228.71 = 133,279.62/x
3. Step 3: Cross multiply
   448,895.94x = 673,228.71 × 133,279.62
4. Step 4: Simplify right side
   448,895.94x = 89,727,666,641.89
5. Step 5: Solve for x
   x = 89,727,666,641.89/448,895.94
6. Step 6: Final answer
   x = 199,885.23