Finding the Fourth Proportional to 208,592.16, 287,751.20 and 131,982.09

Step by Step Solution

1. Step 1: Write the proportion equation
   208,592.16 : 287,751.20 = 131,982.09 : x
2. Step 2: Convert to fraction form
   208,592.16/287,751.20 = 131,982.09/x
3. Step 3: Cross multiply
   208,592.16x = 287,751.20 × 131,982.09
4. Step 4: Simplify right side
   208,592.16x = 37,978,004,116.10
5. Step 5: Solve for x
   x = 37,978,004,116.10/208,592.16
6. Step 6: Final answer
   x = 182,068.22