Finding the Fourth Proportional to 67,700.28, 93,336.78 and 55,556.28

Step by Step Solution

1. Step 1: Write the proportion equation
   67,700.28 : 93,336.78 = 55,556.28 : x
2. Step 2: Convert to fraction form
   67,700.28/93,336.78 = 55,556.28/x
3. Step 3: Cross multiply
   67,700.28x = 93,336.78 × 55,556.28
4. Step 4: Simplify right side
   67,700.28x = 5,185,444,283.98
5. Step 5: Solve for x
   x = 5,185,444,283.98/67,700.28
6. Step 6: Final answer
   x = 76,594.13