Finding the Fourth Proportional to 105,737.76, 145,924.83 and 69,864.84

Step by Step Solution

1. Step 1: Write the proportion equation
   105,737.76 : 145,924.83 = 69,864.84 : x
2. Step 2: Convert to fraction form
   105,737.76/145,924.83 = 69,864.84/x
3. Step 3: Cross multiply
   105,737.76x = 145,924.83 × 69,864.84
4. Step 4: Simplify right side
   105,737.76x = 10,195,014,899.98
5. Step 5: Solve for x
   x = 10,195,014,899.98/105,737.76
6. Step 6: Final answer
   x = 96,417.92