Finding the Fourth Proportional to 76,675.89, 105,854.24 and 53,776.02

Step by Step Solution

1. Step 1: Write the proportion equation
   76,675.89 : 105,854.24 = 53,776.02 : x
2. Step 2: Convert to fraction form
   76,675.89/105,854.24 = 53,776.02/x
3. Step 3: Cross multiply
   76,675.89x = 105,854.24 × 53,776.02
4. Step 4: Simplify right side
   76,675.89x = 5,692,420,258.72
5. Step 5: Solve for x
   x = 5,692,420,258.72/76,675.89
6. Step 6: Final answer
   x = 74,240.03