Finding the Fourth Proportional to 69,188.14, 103,708.28 and 49,406.72

Step by Step Solution

1. Step 1: Write the proportion equation
   69,188.14 : 103,708.28 = 49,406.72 : x
2. Step 2: Convert to fraction form
   69,188.14/103,708.28 = 49,406.72/x
3. Step 3: Cross multiply
   69,188.14x = 103,708.28 × 49,406.72
4. Step 4: Simplify right side
   69,188.14x = 5,123,886,181.60
5. Step 5: Solve for x
   x = 5,123,886,181.60/69,188.14
6. Step 6: Final answer
   x = 74,057.29