Finding the Fourth Proportional to 69,016.90, 103,634.70 and 50,427.40

Step by Step Solution

1. Step 1: Write the proportion equation
   69,016.90 : 103,634.70 = 50,427.40 : x
2. Step 2: Convert to fraction form
   69,016.90/103,634.70 = 50,427.40/x
3. Step 3: Cross multiply
   69,016.90x = 103,634.70 × 50,427.40
4. Step 4: Simplify right side
   69,016.90x = 5,226,028,470.78
5. Step 5: Solve for x
   x = 5,226,028,470.78/69,016.90
6. Step 6: Final answer
   x = 75,721.00