Finding the Fourth Proportional to 383,167.69, 528,787.82 and 213,401.81

Step by Step Solution

1. Step 1: Write the proportion equation
   383,167.69 : 528,787.82 = 213,401.81 : x
2. Step 2: Convert to fraction form
   383,167.69/528,787.82 = 213,401.81/x
3. Step 3: Cross multiply
   383,167.69x = 528,787.82 × 213,401.81
4. Step 4: Simplify right side
   383,167.69x = 112,844,279,749.43
5. Step 5: Solve for x
   x = 112,844,279,749.43/383,167.69
6. Step 6: Final answer
   x = 294,503.64