Finding the Fourth Proportional to 65,052.99, 89,723.60 and 55,993.77

Step by Step Solution

1. Step 1: Write the proportion equation
   65,052.99 : 89,723.60 = 55,993.77 : x
2. Step 2: Convert to fraction form
   65,052.99/89,723.60 = 55,993.77/x
3. Step 3: Cross multiply
   65,052.99x = 89,723.60 × 55,993.77
4. Step 4: Simplify right side
   65,052.99x = 5,023,962,342.00
5. Step 5: Solve for x
   x = 5,023,962,342.00/65,052.99
6. Step 6: Final answer
   x = 77,228.77