Finding the Fourth Proportional to 626,112, 864,034.56 and 357,845.76

Step by Step Solution

1. Step 1: Write the proportion equation
   626,112 : 864,034.56 = 357,845.76 : x
2. Step 2: Convert to fraction form
   626,112/864,034.56 = 357,845.76/x
3. Step 3: Cross multiply
   626,112x = 864,034.56 × 357,845.76
4. Step 4: Simplify right side
   626,112x = 309,191,103,789.47
5. Step 5: Solve for x
   x = 309,191,103,789.47/626,112
6. Step 6: Final answer
   x = 493,827.15