Finding the Fourth Proportional to 105,820.93, 146,039.45 and 69,948.73

Step by Step Solution

1. Step 1: Write the proportion equation
   105,820.93 : 146,039.45 = 69,948.73 : x
2. Step 2: Convert to fraction form
   105,820.93/146,039.45 = 69,948.73/x
3. Step 3: Cross multiply
   105,820.93x = 146,039.45 × 69,948.73
4. Step 4: Simplify right side
   105,820.93x = 10,215,274,057.40
5. Step 5: Solve for x
   x = 10,215,274,057.40/105,820.93
6. Step 6: Final answer
   x = 96,533.59