Finding the Fourth Proportional to 55,412.76, 83,493.20 and 45,768.10

Step by Step Solution

1. Step 1: Write the proportion equation
   55,412.76 : 83,493.20 = 45,768.10 : x
2. Step 2: Convert to fraction form
   55,412.76/83,493.20 = 45,768.10/x
3. Step 3: Cross multiply
   55,412.76x = 83,493.20 × 45,768.10
4. Step 4: Simplify right side
   55,412.76x = 3,821,325,126.92
5. Step 5: Solve for x
   x = 3,821,325,126.92/55,412.76
6. Step 6: Final answer
   x = 68,961.10