Finding the Fourth Proportional to 112,775.92, 155,647.34 and 65,019.92

Step by Step Solution

1. Step 1: Write the proportion equation
   112,775.92 : 155,647.34 = 65,019.92 : x
2. Step 2: Convert to fraction form
   112,775.92/155,647.34 = 65,019.92/x
3. Step 3: Cross multiply
   112,775.92x = 155,647.34 × 65,019.92
4. Step 4: Simplify right side
   112,775.92x = 10,120,177,595.01
5. Step 5: Solve for x
   x = 10,120,177,595.01/112,775.92
6. Step 6: Final answer
   x = 89,737.04