Finding the Fourth Proportional to 429,310.50, 592,418.81 and 238,308.86

Step by Step Solution

1. Step 1: Write the proportion equation
   429,310.50 : 592,418.81 = 238,308.86 : x
2. Step 2: Convert to fraction form
   429,310.50/592,418.81 = 238,308.86/x
3. Step 3: Cross multiply
   429,310.50x = 592,418.81 × 238,308.86
4. Step 4: Simplify right side
   429,310.50x = 141,178,647,100.02
5. Step 5: Solve for x
   x = 141,178,647,100.02/429,310.50
6. Step 6: Final answer
   x = 328,849.74