Finding the Fourth Proportional to 112,214.89, 154,912.67 and 69,787.09

Step by Step Solution

1. Step 1: Write the proportion equation
   112,214.89 : 154,912.67 = 69,787.09 : x
2. Step 2: Convert to fraction form
   112,214.89/154,912.67 = 69,787.09/x
3. Step 3: Cross multiply
   112,214.89x = 154,912.67 × 69,787.09
4. Step 4: Simplify right side
   112,214.89x = 10,810,904,443.43
5. Step 5: Solve for x
   x = 10,810,904,443.43/112,214.89
6. Step 6: Final answer
   x = 96,341.09