Finding the Fourth Proportional to 228,702.56, 315,610.56 and 133,274.72

Step by Step Solution

1. Step 1: Write the proportion equation
   228,702.56 : 315,610.56 = 133,274.72 : x
2. Step 2: Convert to fraction form
   228,702.56/315,610.56 = 133,274.72/x
3. Step 3: Cross multiply
   228,702.56x = 315,610.56 × 133,274.72
4. Step 4: Simplify right side
   228,702.56x = 42,062,909,013.04
5. Step 5: Solve for x
   x = 42,062,909,013.04/228,702.56
6. Step 6: Final answer
   x = 183,919.71