Finding the Fourth Proportional to 112,869.65, 155,728.60 and 88,922.00

Step by Step Solution

1. Step 1: Write the proportion equation
   112,869.65 : 155,728.60 = 88,922.00 : x
2. Step 2: Convert to fraction form
   112,869.65/155,728.60 = 88,922.00/x
3. Step 3: Cross multiply
   112,869.65x = 155,728.60 × 88,922.00
4. Step 4: Simplify right side
   112,869.65x = 13,847,697,568.25
5. Step 5: Solve for x
   x = 13,847,697,568.25/112,869.65
6. Step 6: Final answer
   x = 122,687.53