Finding the Fourth Proportional to 105,062.06, 144,974.61 and 64,793.93

Step by Step Solution

1. Step 1: Write the proportion equation
   105,062.06 : 144,974.61 = 64,793.93 : x
2. Step 2: Convert to fraction form
   105,062.06/144,974.61 = 64,793.93/x
3. Step 3: Cross multiply
   105,062.06x = 144,974.61 × 64,793.93
4. Step 4: Simplify right side
   105,062.06x = 9,393,474,007.24
5. Step 5: Solve for x
   x = 9,393,474,007.24/105,062.06
6. Step 6: Final answer
   x = 89,408.81