Finding the Fourth Proportional to 127,087.74, 190,498.59 and 42,818.79

Step by Step Solution

1. Step 1: Write the proportion equation
   127,087.74 : 190,498.59 = 42,818.79 : x
2. Step 2: Convert to fraction form
   127,087.74/190,498.59 = 42,818.79/x
3. Step 3: Cross multiply
   127,087.74x = 190,498.59 × 42,818.79
4. Step 4: Simplify right side
   127,087.74x = 8,156,918,168.01
5. Step 5: Solve for x
   x = 8,156,918,168.01/127,087.74
6. Step 6: Final answer
   x = 64,183.36