Finding the Fourth Proportional to 123,734.96, 170,827.58 and 81,366.56

Step by Step Solution

1. Step 1: Write the proportion equation
   123,734.96 : 170,827.58 = 81,366.56 : x
2. Step 2: Convert to fraction form
   123,734.96/170,827.58 = 81,366.56/x
3. Step 3: Cross multiply
   123,734.96x = 170,827.58 × 81,366.56
4. Step 4: Simplify right side
   123,734.96x = 13,899,652,537.72
5. Step 5: Solve for x
   x = 13,899,652,537.72/123,734.96
6. Step 6: Final answer
   x = 112,334.08