Finding the Fourth Proportional to 55,371.72, 83,086.74 and 42,308.04

Step by Step Solution

1. Step 1: Write the proportion equation
   55,371.72 : 83,086.74 = 42,308.04 : x
2. Step 2: Convert to fraction form
   55,371.72/83,086.74 = 42,308.04/x
3. Step 3: Cross multiply
   55,371.72x = 83,086.74 × 42,308.04
4. Step 4: Simplify right side
   55,371.72x = 3,515,237,119.39
5. Step 5: Solve for x
   x = 3,515,237,119.39/55,371.72
6. Step 6: Final answer
   x = 63,484.34