Finding the Fourth Proportional to 429,885.50, 592,616.75 and 300,422.06

Step by Step Solution

1. Step 1: Write the proportion equation
   429,885.50 : 592,616.75 = 300,422.06 : x
2. Step 2: Convert to fraction form
   429,885.50/592,616.75 = 300,422.06/x
3. Step 3: Cross multiply
   429,885.50x = 592,616.75 × 300,422.06
4. Step 4: Simplify right side
   429,885.50x = 178,035,140,360.31
5. Step 5: Solve for x
   x = 178,035,140,360.31/429,885.50
6. Step 6: Final answer
   x = 414,145.49