Finding the Fourth Proportional to 65,206.08, 89,981.28 and 40,050.72

Step by Step Solution

1. Step 1: Write the proportion equation
   65,206.08 : 89,981.28 = 40,050.72 : x
2. Step 2: Convert to fraction form
   65,206.08/89,981.28 = 40,050.72/x
3. Step 3: Cross multiply
   65,206.08x = 89,981.28 × 40,050.72
4. Step 4: Simplify right side
   65,206.08x = 3,603,815,050.52
5. Step 5: Solve for x
   x = 3,603,815,050.52/65,206.08
6. Step 6: Final answer
   x = 55,268.08