Finding the Fourth Proportional to 429,443.08, 592,648.50 and 248,149

Step by Step Solution

1. Step 1: Write the proportion equation
   429,443.08 : 592,648.50 = 248,149 : x
2. Step 2: Convert to fraction form
   429,443.08/592,648.50 = 248,149/x
3. Step 3: Cross multiply
   429,443.08x = 592,648.50 × 248,149
4. Step 4: Simplify right side
   429,443.08x = 147,065,132,626.50
5. Step 5: Solve for x
   x = 147,065,132,626.50/429,443.08
6. Step 6: Final answer
   x = 342,455.47