Finding the Fourth Proportional to 637,181.31, 879,209.46 and 365,196.81

Step by Step Solution

1. Step 1: Write the proportion equation
   637,181.31 : 879,209.46 = 365,196.81 : x
2. Step 2: Convert to fraction form
   637,181.31/879,209.46 = 365,196.81/x
3. Step 3: Cross multiply
   637,181.31x = 879,209.46 × 365,196.81
4. Step 4: Simplify right side
   637,181.31x = 321,084,490,113.82
5. Step 5: Solve for x
   x = 321,084,490,113.82/637,181.31
6. Step 6: Final answer
   x = 503,913.85