Finding the Fourth Proportional to 112,375.65, 155,083.10 and 64,629.03

Step by Step Solution

1. Step 1: Write the proportion equation
   112,375.65 : 155,083.10 = 64,629.03 : x
2. Step 2: Convert to fraction form
   112,375.65/155,083.10 = 64,629.03/x
3. Step 3: Cross multiply
   112,375.65x = 155,083.10 × 64,629.03
4. Step 4: Simplify right side
   112,375.65x = 10,022,870,322.39
5. Step 5: Solve for x
   x = 10,022,870,322.39/112,375.65
6. Step 6: Final answer
   x = 89,190.77