Finding the Fourth Proportional to 105,820.76, 158,785.61 and 70,306.53

Step by Step Solution

1. Step 1: Write the proportion equation
   105,820.76 : 158,785.61 = 70,306.53 : x
2. Step 2: Convert to fraction form
   105,820.76/158,785.61 = 70,306.53/x
3. Step 3: Cross multiply
   105,820.76x = 158,785.61 × 70,306.53
4. Step 4: Simplify right side
   105,820.76x = 11,163,665,594.70
5. Step 5: Solve for x
   x = 11,163,665,594.70/105,820.76
6. Step 6: Final answer
   x = 105,495.99