Finding the Fourth Proportional to 188,362.94, 259,940.96 and 103,485.47

Step by Step Solution

1. Step 1: Write the proportion equation
   188,362.94 : 259,940.96 = 103,485.47 : x
2. Step 2: Convert to fraction form
   188,362.94/259,940.96 = 103,485.47/x
3. Step 3: Cross multiply
   188,362.94x = 259,940.96 × 103,485.47
4. Step 4: Simplify right side
   188,362.94x = 26,900,111,900.42
5. Step 5: Solve for x
   x = 26,900,111,900.42/188,362.94
6. Step 6: Final answer
   x = 142,810.00