Finding the Fourth Proportional to 510,404.95, 765,677.46 and 173,355.10

Step by Step Solution

1. Step 1: Write the proportion equation
   510,404.95 : 765,677.46 = 173,355.10 : x
2. Step 2: Convert to fraction form
   510,404.95/765,677.46 = 173,355.10/x
3. Step 3: Cross multiply
   510,404.95x = 765,677.46 × 173,355.10
4. Step 4: Simplify right side
   510,404.95x = 132,734,090,731.85
5. Step 5: Solve for x
   x = 132,734,090,731.85/510,404.95
6. Step 6: Final answer
   x = 260,056.43