Finding the Fourth Proportional to 429,443.79, 592,499.53 and 248,089.54

Step by Step Solution

1. Step 1: Write the proportion equation
   429,443.79 : 592,499.53 = 248,089.54 : x
2. Step 2: Convert to fraction form
   429,443.79/592,499.53 = 248,089.54/x
3. Step 3: Cross multiply
   429,443.79x = 592,499.53 × 248,089.54
4. Step 4: Simplify right side
   429,443.79x = 146,992,935,847.92
5. Step 5: Solve for x
   x = 146,992,935,847.92/429,443.79
6. Step 6: Final answer
   x = 342,286.79