Finding the Fourth Proportional to 69,087.38, 103,632.82 and 51,667.78

Step by Step Solution

1. Step 1: Write the proportion equation
   69,087.38 : 103,632.82 = 51,667.78 : x
2. Step 2: Convert to fraction form
   69,087.38/103,632.82 = 51,667.78/x
3. Step 3: Cross multiply
   69,087.38x = 103,632.82 × 51,667.78
4. Step 4: Simplify right side
   69,087.38x = 5,354,477,744.54
5. Step 5: Solve for x
   x = 5,354,477,744.54/69,087.38
6. Step 6: Final answer
   x = 77,502.98