Finding the Fourth Proportional to 105,081.72, 157,577.94 and 38,494.20

Step by Step Solution

1. Step 1: Write the proportion equation
   105,081.72 : 157,577.94 = 38,494.20 : x
2. Step 2: Convert to fraction form
   105,081.72/157,577.94 = 38,494.20/x
3. Step 3: Cross multiply
   105,081.72x = 157,577.94 × 38,494.20
4. Step 4: Simplify right side
   105,081.72x = 6,065,836,737.95
5. Step 5: Solve for x
   x = 6,065,836,737.95/105,081.72
6. Step 6: Final answer
   x = 57,724.95