Finding the Fourth Proportional to 208,798.02, 288,142.02 and 113,304.72

Step by Step Solution

1. Step 1: Write the proportion equation
   208,798.02 : 288,142.02 = 113,304.72 : x
2. Step 2: Convert to fraction form
   208,798.02/288,142.02 = 113,304.72/x
3. Step 3: Cross multiply
   208,798.02x = 288,142.02 × 113,304.72
4. Step 4: Simplify right side
   208,798.02x = 32,647,850,896.33
5. Step 5: Solve for x
   x = 32,647,850,896.33/208,798.02
6. Step 6: Final answer
   x = 156,360.92