Finding the Fourth Proportional to 105,264.84, 157,614.32 and 80,185.42

Step by Step Solution

1. Step 1: Write the proportion equation
   105,264.84 : 157,614.32 = 80,185.42 : x
2. Step 2: Convert to fraction form
   105,264.84/157,614.32 = 80,185.42/x
3. Step 3: Cross multiply
   105,264.84x = 157,614.32 × 80,185.42
4. Step 4: Simplify right side
   105,264.84x = 12,638,370,447.21
5. Step 5: Solve for x
   x = 12,638,370,447.21/105,264.84
6. Step 6: Final answer
   x = 120,062.60