Finding the Fourth Proportional to 259,477.38, 389,268.59 and 109,717.43

Step by Step Solution

1. Step 1: Write the proportion equation
   259,477.38 : 389,268.59 = 109,717.43 : x
2. Step 2: Convert to fraction form
   259,477.38/389,268.59 = 109,717.43/x
3. Step 3: Cross multiply
   259,477.38x = 389,268.59 × 109,717.43
4. Step 4: Simplify right side
   259,477.38x = 42,709,546,779.59
5. Step 5: Solve for x
   x = 42,709,546,779.59/259,477.38
6. Step 6: Final answer
   x = 164,598.34