Finding the Fourth Proportional to 188,443.36, 282,049.76 and 138,510.32

Step by Step Solution

1. Step 1: Write the proportion equation
   188,443.36 : 282,049.76 = 138,510.32 : x
2. Step 2: Convert to fraction form
   188,443.36/282,049.76 = 138,510.32/x
3. Step 3: Cross multiply
   188,443.36x = 282,049.76 × 138,510.32
4. Step 4: Simplify right side
   188,443.36x = 39,066,802,513.52
5. Step 5: Solve for x
   x = 39,066,802,513.52/188,443.36
6. Step 6: Final answer
   x = 207,313.23