Finding the Fourth Proportional to 269,355, 404,090.82 and 103,143

Step by Step Solution

1. Step 1: Write the proportion equation
   269,355 : 404,090.82 = 103,143 : x
2. Step 2: Convert to fraction form
   269,355/404,090.82 = 103,143/x
3. Step 3: Cross multiply
   269,355x = 404,090.82 × 103,143
4. Step 4: Simplify right side
   269,355x = 41,679,139,447.26
5. Step 5: Solve for x
   x = 41,679,139,447.26/269,355
6. Step 6: Final answer
   x = 154,736.83