Finding the Fourth Proportional to 76,627.09, 105,688.83 and 52,761.45

Step by Step Solution

1. Step 1: Write the proportion equation
   76,627.09 : 105,688.83 = 52,761.45 : x
2. Step 2: Convert to fraction form
   76,627.09/105,688.83 = 52,761.45/x
3. Step 3: Cross multiply
   76,627.09x = 105,688.83 × 52,761.45
4. Step 4: Simplify right side
   76,627.09x = 5,576,296,513.79
5. Step 5: Solve for x
   x = 5,576,296,513.79/76,627.09
6. Step 6: Final answer
   x = 72,771.87