Finding the Fourth Proportional to 342,196.60, 512,322.90 and 323,577.40

Step by Step Solution

1. Step 1: Write the proportion equation
   342,196.60 : 512,322.90 = 323,577.40 : x
2. Step 2: Convert to fraction form
   342,196.60/512,322.90 = 323,577.40/x
3. Step 3: Cross multiply
   342,196.60x = 512,322.90 × 323,577.40
4. Step 4: Simplify right side
   342,196.60x = 165,776,111,942.46
5. Step 5: Solve for x
   x = 165,776,111,942.46/342,196.60
6. Step 6: Final answer
   x = 484,446.99