Finding the Fourth Proportional to 65,265.36, 89,987.40 and 55,176

Step by Step Solution

1. Step 1: Write the proportion equation
   65,265.36 : 89,987.40 = 55,176 : x
2. Step 2: Convert to fraction form
   65,265.36/89,987.40 = 55,176/x
3. Step 3: Cross multiply
   65,265.36x = 89,987.40 × 55,176
4. Step 4: Simplify right side
   65,265.36x = 4,965,144,782.40
5. Step 5: Solve for x
   x = 4,965,144,782.40/65,265.36
6. Step 6: Final answer
   x = 76,076.26