Finding the Fourth Proportional to 112,866.27, 155,723.94 and 88,918.62

Step by Step Solution

1. Step 1: Write the proportion equation
   112,866.27 : 155,723.94 = 88,918.62 : x
2. Step 2: Convert to fraction form
   112,866.27/155,723.94 = 88,918.62/x
3. Step 3: Cross multiply
   112,866.27x = 155,723.94 × 88,918.62
4. Step 4: Simplify right side
   112,866.27x = 13,846,757,845.76
5. Step 5: Solve for x
   x = 13,846,757,845.76/112,866.27
6. Step 6: Final answer
   x = 122,682.87