Finding the Fourth Proportional to 626,554.59, 864,622.17 and 340,068.53

Step by Step Solution

1. Step 1: Write the proportion equation
   626,554.59 : 864,622.17 = 340,068.53 : x
2. Step 2: Convert to fraction form
   626,554.59/864,622.17 = 340,068.53/x
3. Step 3: Cross multiply
   626,554.59x = 864,622.17 × 340,068.53
4. Step 4: Simplify right side
   626,554.59x = 294,030,786,034.20
5. Step 5: Solve for x
   x = 294,030,786,034.20/626,554.59
6. Step 6: Final answer
   x = 469,281.99