Finding the Fourth Proportional to 63,864.50, 88,216.22 and 51,809.78

Step by Step Solution

1. Step 1: Write the proportion equation
   63,864.50 : 88,216.22 = 51,809.78 : x
2. Step 2: Convert to fraction form
   63,864.50/88,216.22 = 51,809.78/x
3. Step 3: Cross multiply
   63,864.50x = 88,216.22 × 51,809.78
4. Step 4: Simplify right side
   63,864.50x = 4,570,463,300.70
5. Step 5: Solve for x
   x = 4,570,463,300.70/63,864.50
6. Step 6: Final answer
   x = 71,565.01