Finding the Fourth Proportional to 112,519.44, 155,310.30 and 64,806.30

Step by Step Solution

1. Step 1: Write the proportion equation
   112,519.44 : 155,310.30 = 64,806.30 : x
2. Step 2: Convert to fraction form
   112,519.44/155,310.30 = 64,806.30/x
3. Step 3: Cross multiply
   112,519.44x = 155,310.30 × 64,806.30
4. Step 4: Simplify right side
   112,519.44x = 10,065,085,894.89
5. Step 5: Solve for x
   x = 10,065,085,894.89/112,519.44
6. Step 6: Final answer
   x = 89,451.97