Finding the Fourth Proportional to 65,308.32, 90,176.34 and 50,176.98

Step by Step Solution

1. Step 1: Write the proportion equation
   65,308.32 : 90,176.34 = 50,176.98 : x
2. Step 2: Convert to fraction form
   65,308.32/90,176.34 = 50,176.98/x
3. Step 3: Cross multiply
   65,308.32x = 90,176.34 × 50,176.98
4. Step 4: Simplify right side
   65,308.32x = 4,524,776,408.65
5. Step 5: Solve for x
   x = 4,524,776,408.65/65,308.32
6. Step 6: Final answer
   x = 69,283.31