Finding the Fourth Proportional to 69,179.31, 95,469.39 and 42,321.15

Step by Step Solution

1. Step 1: Write the proportion equation
   69,179.31 : 95,469.39 = 42,321.15 : x
2. Step 2: Convert to fraction form
   69,179.31/95,469.39 = 42,321.15/x
3. Step 3: Cross multiply
   69,179.31x = 95,469.39 × 42,321.15
4. Step 4: Simplify right side
   69,179.31x = 4,040,374,374.60
5. Step 5: Solve for x
   x = 4,040,374,374.60/69,179.31
6. Step 6: Final answer
   x = 58,404.38