Finding the Fourth Proportional to 112,775.65, 155,646.98 and 65,019.67

Step by Step Solution

1. Step 1: Write the proportion equation
   112,775.65 : 155,646.98 = 65,019.67 : x
2. Step 2: Convert to fraction form
   112,775.65/155,646.98 = 65,019.67/x
3. Step 3: Cross multiply
   112,775.65x = 155,646.98 × 65,019.67
4. Step 4: Simplify right side
   112,775.65x = 10,120,115,276.10
5. Step 5: Solve for x
   x = 10,120,115,276.10/112,775.65
6. Step 6: Final answer
   x = 89,736.71