Finding the Fourth Proportional to 127,087.49, 190,498.21 and 42,818.54

Step by Step Solution

1. Step 1: Write the proportion equation
   127,087.49 : 190,498.21 = 42,818.54 : x
2. Step 2: Convert to fraction form
   127,087.49/190,498.21 = 42,818.54/x
3. Step 3: Cross multiply
   127,087.49x = 190,498.21 × 42,818.54
4. Step 4: Simplify right side
   127,087.49x = 8,156,855,224.81
5. Step 5: Solve for x
   x = 8,156,855,224.81/127,087.49
6. Step 6: Final answer
   x = 64,182.99