Finding the Fourth Proportional to 630,071.62, 869,499.04 and 343,584.34

Step by Step Solution

1. Step 1: Write the proportion equation
   630,071.62 : 869,499.04 = 343,584.34 : x
2. Step 2: Convert to fraction form
   630,071.62/869,499.04 = 343,584.34/x
3. Step 3: Cross multiply
   630,071.62x = 869,499.04 × 343,584.34
4. Step 4: Simplify right side
   630,071.62x = 298,746,253,789.03
5. Step 5: Solve for x
   x = 298,746,253,789.03/630,071.62
6. Step 6: Final answer
   x = 474,146.50