Finding the Fourth Proportional to 339,971.59, 469,161.27 and 189,068.59

Step by Step Solution

1. Step 1: Write the proportion equation
   339,971.59 : 469,161.27 = 189,068.59 : x
2. Step 2: Convert to fraction form
   339,971.59/469,161.27 = 189,068.59/x
3. Step 3: Cross multiply
   339,971.59x = 469,161.27 × 189,068.59
4. Step 4: Simplify right side
   339,971.59x = 88,703,659,801.51
5. Step 5: Solve for x
   x = 88,703,659,801.51/339,971.59
6. Step 6: Final answer
   x = 260,914.92