Finding the Fourth Proportional to 70,595.71, 105,870.07 and 28,464.91

Step by Step Solution

1. Step 1: Write the proportion equation
   70,595.71 : 105,870.07 = 28,464.91 : x
2. Step 2: Convert to fraction form
   70,595.71/105,870.07 = 28,464.91/x
3. Step 3: Cross multiply
   70,595.71x = 105,870.07 × 28,464.91
4. Step 4: Simplify right side
   70,595.71x = 3,013,581,785.15
5. Step 5: Solve for x
   x = 3,013,581,785.15/70,595.71
6. Step 6: Final answer
   x = 42,687.89