Finding the Fourth Proportional to 55,410.76, 83,490.18 and 45,766.10

Step by Step Solution

1. Step 1: Write the proportion equation
   55,410.76 : 83,490.18 = 45,766.10 : x
2. Step 2: Convert to fraction form
   55,410.76/83,490.18 = 45,766.10/x
3. Step 3: Cross multiply
   55,410.76x = 83,490.18 × 45,766.10
4. Step 4: Simplify right side
   55,410.76x = 3,821,019,926.90
5. Step 5: Solve for x
   x = 3,821,019,926.90/55,410.76
6. Step 6: Final answer
   x = 68,958.09