Finding the Fourth Proportional to 70,359.76, 105,535.86 and 17,766.28

Step by Step Solution

1. Step 1: Write the proportion equation
   70,359.76 : 105,535.86 = 17,766.28 : x
2. Step 2: Convert to fraction form
   70,359.76/105,535.86 = 17,766.28/x
3. Step 3: Cross multiply
   70,359.76x = 105,535.86 × 17,766.28
4. Step 4: Simplify right side
   70,359.76x = 1,874,979,638.80
5. Step 5: Solve for x
   x = 1,874,979,638.80/70,359.76
6. Step 6: Final answer
   x = 26,648.47