Finding the Fourth Proportional to 69,811.76, 103,928.00 and 69,396.56

Step by Step Solution

1. Step 1: Write the proportion equation
   69,811.76 : 103,928.00 = 69,396.56 : x
2. Step 2: Convert to fraction form
   69,811.76/103,928.00 = 69,396.56/x
3. Step 3: Cross multiply
   69,811.76x = 103,928.00 × 69,396.56
4. Step 4: Simplify right side
   69,811.76x = 7,212,245,600.52
5. Step 5: Solve for x
   x = 7,212,245,600.52/69,811.76
6. Step 6: Final answer
   x = 103,309.90