Finding the Fourth Proportional to 70,037.73, 105,025.61 and 20,106.23

Step by Step Solution

1. Step 1: Write the proportion equation
   70,037.73 : 105,025.61 = 20,106.23 : x
2. Step 2: Convert to fraction form
   70,037.73/105,025.61 = 20,106.23/x
3. Step 3: Cross multiply
   70,037.73x = 105,025.61 × 20,106.23
4. Step 4: Simplify right side
   70,037.73x = 2,111,668,595.69
5. Step 5: Solve for x
   x = 2,111,668,595.69/70,037.73
6. Step 6: Final answer
   x = 30,150.44