Finding the Fourth Proportional to 188,213.98, 282,071.72 and 138,059.24

Step by Step Solution

1. Step 1: Write the proportion equation
   188,213.98 : 282,071.72 = 138,059.24 : x
2. Step 2: Convert to fraction form
   188,213.98/282,071.72 = 138,059.24/x
3. Step 3: Cross multiply
   188,213.98x = 282,071.72 × 138,059.24
4. Step 4: Simplify right side
   188,213.98x = 38,942,605,446.90
5. Step 5: Solve for x
   x = 38,942,605,446.90/188,213.98
6. Step 6: Final answer
   x = 206,906.02