Finding the Fourth Proportional to 763,629.50, 1,053,808.72 and 424,129.34

Step by Step Solution

1. Step 1: Write the proportion equation
   763,629.50 : 1,053,808.72 = 424,129.34 : x
2. Step 2: Convert to fraction form
   763,629.50/1,053,808.72 = 424,129.34/x
3. Step 3: Cross multiply
   763,629.50x = 1,053,808.72 × 424,129.34
4. Step 4: Simplify right side
   763,629.50x = 446,951,196,899.85
5. Step 5: Solve for x
   x = 446,951,196,899.85/763,629.50
6. Step 6: Final answer
   x = 585,298.49