Finding the Fourth Proportional to 45,419.94, 68,556.54 and 45,419.94

Step by Step Solution

1. Step 1: Write the proportion equation
   45,419.94 : 68,556.54 = 45,419.94 : x
2. Step 2: Convert to fraction form
   45,419.94/68,556.54 = 45,419.94/x
3. Step 3: Cross multiply
   45,419.94x = 68,556.54 × 45,419.94
4. Step 4: Simplify right side
   45,419.94x = 3,113,833,933.41
5. Step 5: Solve for x
   x = 3,113,833,933.41/45,419.94
6. Step 6: Final answer
   x = 68,556.54