Finding the Fourth Proportional to 259,402.06, 389,009.68 and 109,654.00

Step by Step Solution

1. Step 1: Write the proportion equation
   259,402.06 : 389,009.68 = 109,654.00 : x
2. Step 2: Convert to fraction form
   259,402.06/389,009.68 = 109,654.00/x
3. Step 3: Cross multiply
   259,402.06x = 389,009.68 × 109,654.00
4. Step 4: Simplify right side
   259,402.06x = 42,656,465,231.54
5. Step 5: Solve for x
   x = 42,656,465,231.54/259,402.06
6. Step 6: Final answer
   x = 164,441.51