Finding the Fourth Proportional to 188,429.64, 259,916.29 and 123,906.31

Step by Step Solution

1. Step 1: Write the proportion equation
   188,429.64 : 259,916.29 = 123,906.31 : x
2. Step 2: Convert to fraction form
   188,429.64/259,916.29 = 123,906.31/x
3. Step 3: Cross multiply
   188,429.64x = 259,916.29 × 123,906.31
4. Step 4: Simplify right side
   188,429.64x = 32,205,268,140.21
5. Step 5: Solve for x
   x = 32,205,268,140.21/188,429.64
6. Step 6: Final answer
   x = 170,914.02