Finding the Fourth Proportional to 120,237, 165,928.26 and 65,788.12

Step by Step Solution

1. Step 1: Write the proportion equation
   120,237 : 165,928.26 = 65,788.12 : x
2. Step 2: Convert to fraction form
   120,237/165,928.26 = 65,788.12/x
3. Step 3: Cross multiply
   120,237x = 165,928.26 × 65,788.12
4. Step 4: Simplify right side
   120,237x = 10,916,108,280.27
5. Step 5: Solve for x
   x = 10,916,108,280.27/120,237
6. Step 6: Final answer
   x = 90,788.26