Finding the Fourth Proportional to 69,279.19, 103,768.41 and 42,544.05

Step by Step Solution

1. Step 1: Write the proportion equation
   69,279.19 : 103,768.41 = 42,544.05 : x
2. Step 2: Convert to fraction form
   69,279.19/103,768.41 = 42,544.05/x
3. Step 3: Cross multiply
   69,279.19x = 103,768.41 × 42,544.05
4. Step 4: Simplify right side
   69,279.19x = 4,414,728,423.46
5. Step 5: Solve for x
   x = 4,414,728,423.46/69,279.19
6. Step 6: Final answer
   x = 63,723.73