Finding the Fourth Proportional to 112,665.51, 155,517.54 and 69,677.91

Step by Step Solution

1. Step 1: Write the proportion equation
   112,665.51 : 155,517.54 = 69,677.91 : x
2. Step 2: Convert to fraction form
   112,665.51/155,517.54 = 69,677.91/x
3. Step 3: Cross multiply
   112,665.51x = 155,517.54 × 69,677.91
4. Step 4: Simplify right side
   112,665.51x = 10,836,137,155.54
5. Step 5: Solve for x
   x = 10,836,137,155.54/112,665.51
6. Step 6: Final answer
   x = 96,179.72