Finding the Fourth Proportional to 65,156.05, 89,874.30 and 50,025.61

Step by Step Solution

1. Step 1: Write the proportion equation
   65,156.05 : 89,874.30 = 50,025.61 : x
2. Step 2: Convert to fraction form
   65,156.05/89,874.30 = 50,025.61/x
3. Step 3: Cross multiply
   65,156.05x = 89,874.30 × 50,025.61
4. Step 4: Simplify right side
   65,156.05x = 4,496,016,680.82
5. Step 5: Solve for x
   x = 4,496,016,680.82/65,156.05
6. Step 6: Final answer
   x = 69,003.83