Finding the Fourth Proportional to 127,900.38, 191,865.39 and 42,518.88

Step by Step Solution

1. Step 1: Write the proportion equation
   127,900.38 : 191,865.39 = 42,518.88 : x
2. Step 2: Convert to fraction form
   127,900.38/191,865.39 = 42,518.88/x
3. Step 3: Cross multiply
   127,900.38x = 191,865.39 × 42,518.88
4. Step 4: Simplify right side
   127,900.38x = 8,157,901,493.56
5. Step 5: Solve for x
   x = 8,157,901,493.56/127,900.38
6. Step 6: Final answer
   x = 63,783.25